diff --git a/apps/grgsm_decode b/apps/grgsm_decode
index 2198bc4..222d67e 100755
--- a/apps/grgsm_decode
+++ b/apps/grgsm_decode
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 # @file
-# @author Roman Khassraf <rkhassraf@gmail.com>
+# @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
 # @section LICENSE
 #
 # Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/apps/grgsm_livemon b/apps/grgsm_livemon
index ecc31b7..b77acbb 100755
--- a/apps/grgsm_livemon
+++ b/apps/grgsm_livemon
@@ -1,7 +1,7 @@
 #!/usr/bin/env python2
 # -*- coding: utf-8 -*-
 # @file
-# @author Piotr Krysik <ptrkrysik@gmail.com>
+# @author (C) 2014-2016 by Piotr Krysik <ptrkrysik@gmail.com>
 # @section LICENSE
 #
 # Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/apps/grgsm_scanner b/apps/grgsm_scanner
index 397d51e..c1e5638 100755
--- a/apps/grgsm_scanner
+++ b/apps/grgsm_scanner
@@ -1,8 +1,8 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 # @file
-# @author Piotr Krysik <ptrkrysik@gmail.com>
-# @author Roman Khassraf <rkhassraf@gmail.com>
+# @author (C) 2015 by Piotr Krysik <ptrkrysik@gmail.com>
+# @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
 # @section LICENSE
 #
 # Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/apps/helpers/grgsm_capture.py b/apps/helpers/grgsm_capture.py
index a71c2c8..add42d3 100755
--- a/apps/helpers/grgsm_capture.py
+++ b/apps/helpers/grgsm_capture.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 # @file
-# @author Roman Khassraf <rkhassraf@gmail.com>
+# @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
 # @section LICENSE
 #
 # Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/apps/helpers/grgsm_channelize.py b/apps/helpers/grgsm_channelize.py
index 146bb8f..fb30334 100755
--- a/apps/helpers/grgsm_channelize.py
+++ b/apps/helpers/grgsm_channelize.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python2
 # -*- coding: utf-8 -*-
 # @file
-# @author Pieter Robyns <pieter.robyns@uhasselt.be>
+# @author (C) 2015 by Pieter Robyns <pieter.robyns@uhasselt.be>
 # @section LICENSE
 #
 # Gr-gsm is free software; you can redistribute it and/or modify