--- a/OSSEval/entity/models.py
+++ b/OSSEval/entity/models.py
@@ -1,3 +1,18 @@
+# This Source Code Form of OSSEval is subject to the terms of the GNU AFFERO
+# GENERAL PUBLIC LICENSE, v. 3.0. If a copy of the AGPL was not
+# distributed with this file, You can obtain one at http://www.gnu.org/licenses/agpl.txt
+#
+# OSSeval is powered by the SOS Open Source AGPL edition.
+# The AGPL requires that you do not remove the SOS Open Source attribution and copyright
+# notices from the user interface (see section 5.d below).
+# Commercial licenses are available and do not require any SOS Open Source attributions
+# or visible copyright notices but they are not permitted under this license.
+
+# OSSEval Copyright 2014 Bitergium SLL
+# SOS Open Source Copyright 2012 Roberto Galoppini
+# Author: Davide Galletti
+
+
from django.db import models
from OSSEval.utils import xmlMinidom