diff --git a/Two-phase-Two-phase/one-patch/TP-one-patch.py b/Two-phase-Two-phase/one-patch/TP-one-patch.py
index a4eb720790f1aee3ad5d1b170277ee7bf35744f0..5af3122cbb8e8bc8ba73b2bcfb019c29d6301f48 100755
--- a/Two-phase-Two-phase/one-patch/TP-one-patch.py
+++ b/Two-phase-Two-phase/one-patch/TP-one-patch.py
@@ -1,7 +1,24 @@
 #!/usr/bin/python3
-"""TP one patch soil simulation.
+"""TP one patch soil simulation, Copyright 2020, David Seus
 
-This program sets up an L-scheme based simulation for two-phase
+This program runs an L simulation on one domain without domain decomposition.
+
+# LICENCE #####################################################################
+Copyright 2020, David Seus
+david.seus[at]ians.uni-stuttgart.de
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+###############################################################################
 """
 import dolfin as df
 import sympy as sym