diff --git a/catmullromspline.cpp b/catmullromspline.cpp
index a00529a..f0c8e0a 100644
--- a/catmullromspline.cpp
+++ b/catmullromspline.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "catmullromspline.h"
 
 namespace segl {
diff --git a/catmullromspline.h b/catmullromspline.h
index b113af8..1822639 100644
--- a/catmullromspline.h
+++ b/catmullromspline.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __CATMULLROMSPLINE_H
 #define __CATMULLROMSPLINE_H
 
diff --git a/color.cpp b/color.cpp
index 7de0ebc..5fc8320 100644
--- a/color.cpp
+++ b/color.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "color.h"
 
 namespace segl {
diff --git a/color.h b/color.h
index edbc0e3..990aa69 100644
--- a/color.h
+++ b/color.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __COLOR_H
 #define __COLOR_H
 
diff --git a/emath.cpp b/emath.cpp
index de7473c..9fe03b8 100644
--- a/emath.cpp
+++ b/emath.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "emath.h"
 
 namespace segl {
diff --git a/emath.h b/emath.h
index 6dd2af7..0091ced 100644
--- a/emath.h
+++ b/emath.h
@@ -1,8 +1,31 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __EMATH_H
 #define __EMATH_H
 
 #include <iostream>
 #include <cmath>
+#include <SDL_opengl.h>
 
 namespace segl {
 
diff --git a/emath_opengl.cpp b/emath_opengl.cpp
index e2a4472..2434cd2 100644
--- a/emath_opengl.cpp
+++ b/emath_opengl.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "emath_opengl.h"
 
 namespace segl {
diff --git a/emath_opengl.h b/emath_opengl.h
index fc7d9d3..f87d2be 100644
--- a/emath_opengl.h
+++ b/emath_opengl.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __EMATH_OPENGL
 #define __EMATH_OPENGL
 
diff --git a/extstring.cpp b/extstring.cpp
index 88f5be6..6621976 100644
--- a/extstring.cpp
+++ b/extstring.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "extstring.h"
 
 namespace segl {
diff --git a/extstring.h b/extstring.h
index 6283d70..7d2d2b3 100644
--- a/extstring.h
+++ b/extstring.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __EXTSTRING_H
 #define __EXTSTRING_H
 
diff --git a/fpsmanager.cpp b/fpsmanager.cpp
index 08b89dd..ac0dfd8 100644
--- a/fpsmanager.cpp
+++ b/fpsmanager.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "fpsmanager.h"
 
 namespace segl {
diff --git a/fpsmanager.h b/fpsmanager.h
index 1176224..2b60c03 100644
--- a/fpsmanager.h
+++ b/fpsmanager.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __FPSMANAGER_H
 #define __FPSMANAGER_H
 
diff --git a/geotypes.cpp b/geotypes.cpp
index c17f03a..43c8b1c 100644
--- a/geotypes.cpp
+++ b/geotypes.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "geotypes.h"
 
 namespace segl {
@@ -21,14 +43,7 @@ bool Sphere::collision(const Sphere &s) const {
 }
 
 bool Sphere::collision(const Ray &r) const {
-	/*
-	// way more complex (i think), maybe usefull to calc the collpoints
-	const float bsum = r.dir.x + r.dir.y + r.dir.z;
-	float p = (2.0f*(r.pos*r.dir)-pos*r.dir) / bsum;
-	float q = (r.pos*r.pos-2.0f*r.pos*pos+pos*pos-radius*radius) / bsum;
-	return (p*p/4.0f-q >= 0.0f);
-	*/
-	return (r.dist(pos)<=radius);
+	return true;
 }
 
 bool Sphere::collision(const Box & b) const {
@@ -36,7 +51,7 @@ bool Sphere::collision(const Box & b) const {
 }
 
 bool Sphere::collision(const Plane &p) const {
-	return (p.dist(pos)<=radius);
+	return true;
 }
 
 bool Sphere::inSphere(Punkt3D p) const {
@@ -60,12 +75,12 @@ void Ray::set(Punkt3D _pos, Punkt3D _dir) {
 	dir = _dir;
 }
 
-Punkt3D Ray::get(float x) const {
+Punkt3D Ray::get(float x) {
 	return pos + dir*x;
 }
 
 // TODO: Heavy Testing
-bool Ray::onRay(Punkt3D p, int rnd) const {
+bool Ray::onRay(Punkt3D p, int rnd) {
 	float r1 = 0.0f, r2 = 0.0f, r3 = 0.0f;
 	short fcount = 0;
 	bool g1=true, g2=true, g3=true;
@@ -112,14 +127,14 @@ bool Ray::onRay(Punkt3D p, int rnd) const {
 	else if(g3)
 		return (r1 == r2);
 	else
-		return (r1 == r2 && r1 == r3);
+		return (r1 == r2 == r3);
 }
 
-float Ray::dist(Punkt3D p) const {
+float Ray::dist(Punkt3D p) {
 	return abs(p - get( getParam(p) ));
 }
 
-float Ray::getParam(Punkt3D p, bool onray) const {
+float Ray::getParam(Punkt3D p, bool onray) {
 	if(onray) {
 		if(!onRay(p))
 			return 0.0f;
@@ -200,7 +215,7 @@ bool Plane::collision(const Plane &p) const {
 }
 
 float Plane::dist(Punkt3D p) const {
-		
+	
 }
 
 } // namespace segl
diff --git a/geotypes.h b/geotypes.h
index 8e9e824..555e028 100644
--- a/geotypes.h
+++ b/geotypes.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __GEOTYPES_H
 #define __GEOTYPES_H
 
@@ -5,7 +27,6 @@
 
 namespace segl {
 
-class Sphere;
 class Ray;
 class Box;
 class Plane;
@@ -39,10 +60,10 @@ class Ray {
 		Ray(Punkt3D _pos, Punkt3D _dir);
 		
 		void set(Punkt3D _pos, Punkt3D _dir);
-		Punkt3D get(float x) const;
-		bool onRay(Punkt3D p, int rnd=-1) const;
-		float dist(Punkt3D p) const;
-		float getParam(Punkt3D p, bool onray=false) const;
+		Punkt3D get(float x);
+		bool onRay(Punkt3D p, int rnd=-1);
+		float dist(Punkt3D p);
+		float getParam(Punkt3D p, bool onray=false);
 		
 		bool collision(const Sphere &s) const;
 		bool collision(const Ray &r) const;
diff --git a/glcamera.cpp b/glcamera.cpp
index cd75e8e..e8f3324 100644
--- a/glcamera.cpp
+++ b/glcamera.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "glcamera.h"
 
 namespace segl {
diff --git a/glcamera.h b/glcamera.h
index 2547d0b..f08eb14 100644
--- a/glcamera.h
+++ b/glcamera.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __GLCAMERA_H
 #define __GLCAMERA_H
 
diff --git a/gldrawhelper.cpp b/gldrawhelper.cpp
index 731bebc..8868389 100644
--- a/gldrawhelper.cpp
+++ b/gldrawhelper.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "gldrawhelper.h"
 
 namespace segl {
diff --git a/gldrawhelper.h b/gldrawhelper.h
index 1431f0c..0237b70 100644
--- a/gldrawhelper.h
+++ b/gldrawhelper.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __GLDRAWHELPER_H
 #define __GLDRAWHELPER_H
 
diff --git a/glfontengine.cpp b/glfontengine.cpp
index 6d61c5f..bb9851d 100644
--- a/glfontengine.cpp
+++ b/glfontengine.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "glfontengine.h"
 
 namespace segl {
diff --git a/glfontengine.h b/glfontengine.h
index 839a7d4..d478073 100644
--- a/glfontengine.h
+++ b/glfontengine.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __GLFONTENGINE_H
 #define __GLFONTENGINE_H
 
diff --git a/glsdlscreen.cpp b/glsdlscreen.cpp
index fdec12e..8924dbd 100644
--- a/glsdlscreen.cpp
+++ b/glsdlscreen.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "glsdlscreen.h"
 
 namespace segl {
diff --git a/glsdlscreen.h b/glsdlscreen.h
index 4541bb2..95099a8 100644
--- a/glsdlscreen.h
+++ b/glsdlscreen.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __GLSDLSCREEN_H
 #define __GLSDLSCREEN_H
 
diff --git a/gltexture.cpp b/gltexture.cpp
index 6310ff8..63b78e6 100644
--- a/gltexture.cpp
+++ b/gltexture.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "gltexture.h"
 
 namespace segl {
diff --git a/gltexture.h b/gltexture.h
index e26a915..b2f20d0 100644
--- a/gltexture.h
+++ b/gltexture.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __GLTEXTUR_H
 #define __GLTEXTUR_H
 
diff --git a/matrix.cpp b/matrix.cpp
index dcf0bcc..f10550a 100644
--- a/matrix.cpp
+++ b/matrix.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "matrix.h"
 
 namespace segl {
diff --git a/matrix.h b/matrix.h
index 3424b74..e909a48 100644
--- a/matrix.h
+++ b/matrix.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __MATRIX_H
 #define __MATRIX_H
 
diff --git a/punkt2d.cpp b/punkt2d.cpp
index c426fb6..cf73ebb 100644
--- a/punkt2d.cpp
+++ b/punkt2d.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "punkt2d.h"
 
 namespace segl {
diff --git a/punkt2d.h b/punkt2d.h
index 1bb5580..2e19671 100644
--- a/punkt2d.h
+++ b/punkt2d.h
@@ -1,9 +1,30 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __PUNKT3D_H
 #define __PUNKT3D_H
 
 #include <iostream>
 #include <cmath>
-#include <SDL_opengl.h>
 #include "emath.h"
 
 namespace segl {
@@ -54,13 +75,12 @@ class Punkt2D {
 
 } // namespace segl
 
-// #ifdef GLAPI
 void glTexCoord2f(segl::Punkt2D);
 float abs(segl::Punkt2D);
 
 // Fixed Headers
 void glTexCoordP2D(segl::Punkt2D p);
-// #endif /* GLAPI */
+
 
 
 #endif
diff --git a/punkt3d.cpp b/punkt3d.cpp
index 2c75129..773d322 100644
--- a/punkt3d.cpp
+++ b/punkt3d.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "punkt3d.h"
 
 namespace segl {
diff --git a/punkt3d.h b/punkt3d.h
index 139e2ae..38459a4 100644
--- a/punkt3d.h
+++ b/punkt3d.h
@@ -1,9 +1,30 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __PUNKT3D_h
 #define __PUNKT3D_h
 
 #include <iostream>
 #include <cmath>
-#include <SDL_opengl.h>
 #include "emath.h"
 
 namespace segl {
@@ -63,7 +84,7 @@ class Punkt3D {
 float abs(const segl::Punkt3D&);
 
 // OpenGL-Functions for Punkt3D
-// #ifdef GLAPI
+
 void glVertex3f(const segl::Punkt3D&);
 void glTranslatef(const segl::Punkt3D&);
 void glNormal3f(const segl::Punkt3D&);
@@ -77,5 +98,5 @@ void glNormalP3D(const segl::Punkt3D&);
 
 void glRotateP3D(const float&, const segl::Punkt3D&);
 void gluLookAt(const segl::Punkt3D &pos, const segl::Punkt3D &viewport, const segl::Punkt3D &normal);
-// #endif /* GLAPI */
+
 #endif
diff --git a/quader.cpp b/quader.cpp
index 7678271..8311290 100644
--- a/quader.cpp
+++ b/quader.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "quader.h"
 
 namespace segl {
diff --git a/quader.h b/quader.h
index fa0678f..6f740b9 100644
--- a/quader.h
+++ b/quader.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __QUADER_H
 #define __QUADER_H
 
diff --git a/quaternion.cpp b/quaternion.cpp
index dd4f7b8..c8c6a17 100644
--- a/quaternion.cpp
+++ b/quaternion.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "quaternion.h"
 
 namespace segl {
diff --git a/quaternion.h b/quaternion.h
index a0bbf7b..bbae7fc 100644
--- a/quaternion.h
+++ b/quaternion.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __QUATERNION_H
 #define __QUATERNION_H
 
diff --git a/rect.cpp b/rect.cpp
index d476cd1..1010190 100644
--- a/rect.cpp
+++ b/rect.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "rect.h"
 
 namespace segl {
diff --git a/rect.h b/rect.h
index 5732a27..af83dcd 100644
--- a/rect.h
+++ b/rect.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __RECT_H
 #define __RECT_H
 
diff --git a/rotationsmatrix.cpp b/rotationsmatrix.cpp
index 9dfb658..ee62f7c 100644
--- a/rotationsmatrix.cpp
+++ b/rotationsmatrix.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "rotationsmatrix.h"
 
 namespace segl {
diff --git a/rotationsmatrix.h b/rotationsmatrix.h
index fba62aa..8327cb8 100644
--- a/rotationsmatrix.h
+++ b/rotationsmatrix.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __ROTATIONSMATRIX_H
 #define __ROTATIONSMATRIX_H
 
diff --git a/sdlfuncs.cpp b/sdlfuncs.cpp
index 782a2c8..86831fb 100644
--- a/sdlfuncs.cpp
+++ b/sdlfuncs.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "sdlfuncs.h"
 
 namespace segl {
diff --git a/sdlfuncs.h b/sdlfuncs.h
index a2ba80a..3af5710 100644
--- a/sdlfuncs.h
+++ b/sdlfuncs.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __SDLFUNCS_H
 #define __SDLFUNCS_H
 
diff --git a/segl.cpp b/segl.cpp
index c1cc169..5805ca2 100644
--- a/segl.cpp
+++ b/segl.cpp
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #include "segl.h"
 
 namespace segl {
diff --git a/segl.h b/segl.h
index e7a340b..0703de0 100644
--- a/segl.h
+++ b/segl.h
@@ -1,3 +1,25 @@
+/* libsegl - Sebas Extended GL Library
+ *           Collection of Opengl/3D-Math helpers
+ *
+ *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
+ *      http://www.seba-geek.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #ifndef __LIBSEGL_H
 #define __LIBSEGL_H