diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000000000000000000000000000000000000..10ca3ca485ebed2a87ccf03fb371c175f78acaed
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,30 @@
+Copyright (c) 2012-2017, OpenGeoSys Community (http://www.opengeosys.org)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. All advertising materials mentioning features or use of this software
+   must display the following acknowledgement:
+   This product includes software developed by the OpenGeoSys Community.
+4. Neither the name of the OpenGeoSys Community nor the
+   names of its contributors may be used to endorse or promote products
+   derived from this software without specific prior written permission.
+5. Attribute the OpenGeoSys Community, preferably citing an appropriate
+   paper listed on the OpenGeoSys Community homepage:
+   http://www.opengeosys.org/papers
+
+THIS SOFTWARE IS PROVIDED BY THE OpenGeoSys Community ''AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE OpenGeoSys Community BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/post/mergeDataArrays.py b/post/mergeDataArrays.py
index 0fb66d76210a857d44a14f286508a5085fa1e542..ef87ec330da26778eb1b2dd200020b2cc5eb5cb2 100755
--- a/post/mergeDataArrays.py
+++ b/post/mergeDataArrays.py
@@ -1,3 +1,11 @@
+#
+# \copyright
+# Copyright (c) 2012-2017, OpenGeoSys Community (http://www.opengeosys.org)
+#            Distributed under a Modified BSD License.
+#              See accompanying file LICENSE.txt or
+#              http://www.opengeosys.org/project/license
+#
+
 #!/usr/bin/env python2
 
 from vtk import *