diff --git a/LICENSE.md b/LICENSE.md
index 1e502a2bae44fd5b6bcb74007c511d261f580588..31dd82eb237c7adb4eb8d1c0d58f72ae0c4a03ce 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,4 +1,4 @@
-Copyright 2015-2017 Institute of Technical Acoustics (ITA), RWTH Aachen University
+Copyright 2015-2018 Institute of Technical Acoustics (ITA), RWTH Aachen University
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use files of this project except in compliance with the License.
diff --git a/README.md b/README.md
index af235b3e439ff66bbba8dc2e1602088832a53e76..1287bdd3ea53a45dceb19b88ddeb2065813d467f 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ VAPython contains is a C++ extension for the Python3 interpreter that provides a
 
 ### License
 
-Copyright 2015-2017 Institute of Technical Acoustics (ITA), RWTH Aachen University
+Copyright 2015-2018 Institute of Technical Acoustics (ITA), RWTH Aachen University
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use files of this project except in compliance with the License.
diff --git a/src/vasingleton.cpp b/src/vasingleton.cpp
index 5a3e6361201b3fc7b25f32d8e70bd73021ef1fd6..532dcfd02922fd278e551ded2640e0c2dae4e71e 100644
--- a/src/vasingleton.cpp
+++ b/src/vasingleton.cpp
@@ -1,3 +1,16 @@
+/*
+ *  --------------------------------------------------------------------------------------------
+ *
+ *    VVV        VVV A           Virtual Acoustics (VA) | http://www.virtualacoustics.org
+ *     VVV      VVV AAA          Licensed under the Apache License, Version 2.0
+ *      VVV    VVV   AAA
+ *       VVV  VVV     AAA        Copyright 2015-2018
+ *        VVVVVV       AAA       Institute of Technical Acoustics (ITA)
+ *         VVVV         AAA      RWTH Aachen University
+ *
+ *  --------------------------------------------------------------------------------------------
+ */
+
 #include <Python.h>
 
 #include "vasingletondoc.hpp"
diff --git a/src/vasingletondoc.hpp b/src/vasingletondoc.hpp
index efbee0752b49932899e57daeed817d0a0e4d9494..ff295b799848be702b9608aaefcc9dc0152139de 100644
--- a/src/vasingletondoc.hpp
+++ b/src/vasingletondoc.hpp
@@ -1,3 +1,16 @@
+/*
+ *  --------------------------------------------------------------------------------------------
+ *
+ *    VVV        VVV A           Virtual Acoustics (VA) | http://www.virtualacoustics.org
+ *     VVV      VVV AAA          Licensed under the Apache License, Version 2.0
+ *      VVV    VVV   AAA
+ *       VVV  VVV     AAA        Copyright 2015-2018
+ *        VVVVVV       AAA       Institute of Technical Acoustics (ITA)
+ *         VVVV         AAA      RWTH Aachen University
+ *
+ *  --------------------------------------------------------------------------------------------
+ */
+
 #include <Python.h>
 
 PyDoc_STRVAR( module_doc,
diff --git a/src/vasingletonmethods.hpp b/src/vasingletonmethods.hpp
index 15d0f04ded36a8c2d839c3093d0e2009ddd2bad0..377b51ca62754b4b3347baf43636d440c3db6af9 100644
--- a/src/vasingletonmethods.hpp
+++ b/src/vasingletonmethods.hpp
@@ -1,4 +1,17 @@
-#include <Python.h>
+/*
+ *  --------------------------------------------------------------------------------------------
+ *
+ *    VVV        VVV A           Virtual Acoustics (VA) | http://www.virtualacoustics.org
+ *     VVV      VVV AAA          Licensed under the Apache License, Version 2.0
+ *      VVV    VVV   AAA
+ *       VVV  VVV     AAA        Copyright 2015-2018
+ *        VVVVVV       AAA       Institute of Technical Acoustics (ITA)
+ *         VVVV         AAA      RWTH Aachen University
+ *
+ *  --------------------------------------------------------------------------------------------
+ */
+
+ #include <Python.h>
 
 #include <VA.h>
 #include <VANet.h>