diff --git a/eventlet/coros.py b/eventlet/coros.py
index 8e60126..c61aeba 100644
--- a/eventlet/coros.py
+++ b/eventlet/coros.py
@@ -1,6 +1,8 @@
 # @author Donovan Preston
 #
 # Copyright (c) 2007, Linden Research, Inc.
+# Copyright (c) 2008-2009, AG Projects
+# Copyright (c) 2009, Denis Bilenko
 # 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