diff --git a/include/grgsm/receiver/clock_offset_control.h b/include/grgsm/receiver/clock_offset_control.h
index c4ea8b1..00756cb 100644
--- a/include/grgsm/receiver/clock_offset_control.h
+++ b/include/grgsm/receiver/clock_offset_control.h
@@ -1,7 +1,7 @@
 /* -*- c++ -*- */
 /*
  * @file
- * @author Piotr Krysik <ptrkrysik@gmail.com>
+ * @author (C) 2015-2016 by Piotr Krysik <ptrkrysik@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/include/grgsm/receiver/cx_channel_hopper.h b/include/grgsm/receiver/cx_channel_hopper.h
index 99a65c7..0352717 100644
--- a/include/grgsm/receiver/cx_channel_hopper.h
+++ b/include/grgsm/receiver/cx_channel_hopper.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Piotr Krysik <ptrkrysik@gmail.com>
+ * @author (C) 2015 by Pieter Robyns <pieter.robyns@uhasselt.be>
  * @section LICENSE
  * 
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/include/grgsm/receiver/receiver.h b/include/grgsm/receiver/receiver.h
index e19fe7a..dbbe327 100644
--- a/include/grgsm/receiver/receiver.h
+++ b/include/grgsm/receiver/receiver.h
@@ -1,7 +1,7 @@
 /* -*- c++ -*- */
 /*
  * @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