diff --git a/Classification/include/CGAL/Classification/ETHZ/internal/dataview.h b/Classification/include/CGAL/Classification/ETHZ/internal/dataview.h
index 537b3b23a36..bac99e12489 100644
--- a/Classification/include/CGAL/Classification/ETHZ/internal/dataview.h
+++ b/Classification/include/CGAL/Classification/ETHZ/internal/dataview.h
@@ -1,22 +1,6 @@
 // Copyright (c) 2014 Stefan Walk
 //
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
+// This file is part of CGAL (www.cgal.org).
 //
 // $URL$
 // $Id$
diff --git a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/common-libraries.hpp b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/common-libraries.hpp
index 469867737b5..1ff120cd5fd 100644
--- a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/common-libraries.hpp
+++ b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/common-libraries.hpp
@@ -1,22 +1,6 @@
 // Copyright (c) 2014 Stefan Walk
 //
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
+// This file is part of CGAL (www.cgal.org).
 //
 // $URL$
 // $Id$
diff --git a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/forest.hpp b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/forest.hpp
index ce6695b8624..7b3cff1e7f8 100644
--- a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/forest.hpp
+++ b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/forest.hpp
@@ -1,22 +1,6 @@
 // Copyright (c) 2014 Stefan Walk
 //
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
+// This file is part of CGAL (www.cgal.org).
 //
 // $URL$
 // $Id$
diff --git a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/node-gini.hpp b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/node-gini.hpp
index 513708f32c5..150b2023211 100644
--- a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/node-gini.hpp
+++ b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/node-gini.hpp
@@ -1,22 +1,6 @@
 // Copyright (c) 2014 Stefan Walk
 //
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
+// This file is part of CGAL (www.cgal.org).
 //
 // $URL$
 // $Id$
diff --git a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/node.hpp b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/node.hpp
index 6d5ef03bafc..d6289efd035 100644
--- a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/node.hpp
+++ b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/node.hpp
@@ -1,22 +1,6 @@
 // Copyright (c) 2014 Stefan Walk
 //
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
+// This file is part of CGAL (www.cgal.org).
 //
 // $URL$
 // $Id$
diff --git a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/tree.hpp b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/tree.hpp
index 08ddb45aa5b..dab1d36badd 100644
--- a/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/tree.hpp
+++ b/Classification/include/CGAL/Classification/ETHZ/internal/random-forest/tree.hpp
@@ -1,22 +1,6 @@
 // Copyright (c) 2014 Stefan Walk
 //
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
+// This file is part of CGAL (www.cgal.org).
 //
 // $URL$
 // $Id$