diff --git a/demos/solo_imu_kine_mocap.cpp b/demos/solo_imu_kine_mocap.cpp
index 67dd1029e844f8cc78c007abb0ace1dc4c056a76..68c837894f73325895b977784ebba7e5a669801b 100644
--- a/demos/solo_imu_kine_mocap.cpp
+++ b/demos/solo_imu_kine_mocap.cpp
@@ -1,3 +1,24 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
 #include <iostream>
 #include <fstream>
 
diff --git a/demos/solo_kine_mocap.cpp b/demos/solo_kine_mocap.cpp
index fc5a2f34cc10ed232756cea305c36f452c08e4dc..8f3927500e2298866b1b31788a1d2c6d1e1a3608 100644
--- a/demos/solo_kine_mocap.cpp
+++ b/demos/solo_kine_mocap.cpp
@@ -1,3 +1,24 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
 #include <iostream>
 #include <fstream>
 
diff --git a/include/bodydynamics/factor/factor_point_feet_altitude.h b/include/bodydynamics/factor/factor_point_feet_altitude.h
index e74313b9747dad237d63d78659d1149d5622420e..235244a272ded4a67a5a4d8eae8c986476420140 100644
--- a/include/bodydynamics/factor/factor_point_feet_altitude.h
+++ b/include/bodydynamics/factor/factor_point_feet_altitude.h
@@ -1,3 +1,24 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
 /**
  * \file factor_point_feet_altitude.h
  *
diff --git a/include/bodydynamics/factor/factor_point_feet_zero_velocity.h b/include/bodydynamics/factor/factor_point_feet_zero_velocity.h
index 525a9350e6073d0574a312c92203229bb9b9e076..1907583d9d198d90c9f265a970e69dfc8dcfe507 100644
--- a/include/bodydynamics/factor/factor_point_feet_zero_velocity.h
+++ b/include/bodydynamics/factor/factor_point_feet_zero_velocity.h
@@ -1,3 +1,24 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
 /**
  * \file factor_point_feet_nomove.h
  *