diff --git a/LICENSE b/COPYING
similarity index 100%
rename from LICENSE
rename to COPYING
diff --git a/COPYING.LESSER b/COPYING.LESSER
new file mode 100644
index 00000000..65c5ca88
--- /dev/null
+++ b/COPYING.LESSER
@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/doc/source/index.rst b/doc/source/index.rst
index fceb2005..c8fb718d 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -24,7 +24,7 @@ Tubex is compatible with the `IBEX library <http://www.ibex-lib.org/>`_, itself
 Licence
 -------
 
-This software is under `GNU General Public License <https://www.gnu.org/copyleft/gpl.html>`_.
+This software is under `GNU Lesser General Public License <https://www.gnu.org/copyleft/lgpl.html>`_.
 
 Documentation
 -------------
diff --git a/examples/cpp/01_arithmetic/main.cpp b/examples/cpp/01_arithmetic/main.cpp
index dbb2bf54..9b82e510 100644
--- a/examples/cpp/01_arithmetic/main.cpp
+++ b/examples/cpp/01_arithmetic/main.cpp
@@ -1,7 +1,7 @@
 /* ============================================================================
  *  tubex-lib - Arithmetic on tubes: simple example
  *
- *  Example from the paper "Guaranteed Computation of Robots Trajectories"
+ *  Example from the paper "Guaranteed Computation of Robot Trajectories"
  *  Simon Rohou, Luc Jaulin, Lyudmila Mihaylova, Fabrice Le Bars, Sandor M. Veres
  *
  *  Here we consider the following tubes:
@@ -13,7 +13,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/examples/cpp/02_arithmetic_ctc/main.cpp b/examples/cpp/02_arithmetic_ctc/main.cpp
index 9de34318..b96c52eb 100644
--- a/examples/cpp/02_arithmetic_ctc/main.cpp
+++ b/examples/cpp/02_arithmetic_ctc/main.cpp
@@ -1,9 +1,6 @@
 /* ============================================================================
  *  tubex-lib - Arithmetic on tubes involving local contractions: simple example
  *
- *  Example from the paper "Using Tubes to Solve Dynamical Systems"
- *  Simon Rohou, Luc Jaulin, Lyudmila Mihaylova, Fabrice Le Bars, Sandor M. Veres
- *
  *  Here we consider the following tubes:
  *    [x](·)
  *    [y](·), [ydot](·)
@@ -12,7 +9,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/examples/cpp/03_integ_msinx/main.cpp b/examples/cpp/03_integ_msinx/main.cpp
index 532fb3e7..faef9b97 100644
--- a/examples/cpp/03_integ_msinx/main.cpp
+++ b/examples/cpp/03_integ_msinx/main.cpp
@@ -1,7 +1,7 @@
 /* ============================================================================
  *  tubex-lib - Guaranteed integration example: xdot = -sin(x)
  *
- *  Example from the paper "Guaranteed Computation of Robots Trajectories"
+ *  Example from the paper "Guaranteed Computation of Robot Trajectories"
  *  Simon Rohou, Luc Jaulin, Lyudmila Mihaylova, Fabrice Le Bars, Sandor M. Veres
  *
  *  Here we consider the following initial value problem:
@@ -17,7 +17,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/examples/cpp/04_causal_chain/main.cpp b/examples/cpp/04_causal_chain/main.cpp
index 412a720d..03b74d74 100644
--- a/examples/cpp/04_causal_chain/main.cpp
+++ b/examples/cpp/04_causal_chain/main.cpp
@@ -1,12 +1,12 @@
 /* ============================================================================
  *  tubex-lib - Arithmetic on tubes: Causal chain example
  *
- *  Example from the paper "Guaranteed Computation of Robots Trajectories"
+ *  Example from the paper "Guaranteed Computation of Robot Trajectories"
  *  Simon Rohou, Luc Jaulin, Lyudmila Mihaylova, Fabrice Le Bars, Sandor M. Veres
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/examples/cpp/05_lissajous/main.cpp b/examples/cpp/05_lissajous/main.cpp
index 6bacc4cb..7b953db2 100644
--- a/examples/cpp/05_lissajous/main.cpp
+++ b/examples/cpp/05_lissajous/main.cpp
@@ -1,12 +1,12 @@
 /* ============================================================================
  *  tubex-lib - Lissajous robot example
  *
- *  Example from the paper "Guaranteed Computation of Robots Trajectories"
+ *  Example from the paper "Guaranteed Computation of Robot Trajectories"
  *  Simon Rohou, Luc Jaulin, Lyudmila Mihaylova, Fabrice Le Bars, Sandor M. Veres
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/graphics/VibesFigure.cpp b/src/graphics/VibesFigure.cpp
index 566522ea..45c5bb74 100644
--- a/src/graphics/VibesFigure.cpp
+++ b/src/graphics/VibesFigure.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/graphics/VibesFigure.h b/src/graphics/VibesFigure.h
index 34a00846..11815130 100644
--- a/src/graphics/VibesFigure.h
+++ b/src/graphics/VibesFigure.h
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/graphics/VibesFigure_Tube.cpp b/src/graphics/VibesFigure_Tube.cpp
index e8bb4be9..f03050f1 100644
--- a/src/graphics/VibesFigure_Tube.cpp
+++ b/src/graphics/VibesFigure_Tube.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/graphics/VibesFigure_Tube.h b/src/graphics/VibesFigure_Tube.h
index 616fd44d..4bf10812 100644
--- a/src/graphics/VibesFigure_Tube.h
+++ b/src/graphics/VibesFigure_Tube.h
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tools/serialization.cpp b/src/tools/serialization.cpp
index d1851057..b38bca1d 100644
--- a/src/tools/serialization.cpp
+++ b/src/tools/serialization.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tools/serialization.h b/src/tools/serialization.h
index 0c6bc7cb..0a6be3f6 100644
--- a/src/tools/serialization.h
+++ b/src/tools/serialization.h
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/Tube.h b/src/tube/Tube.h
index 867dbff6..b3041182 100644
--- a/src/tube/Tube.h
+++ b/src/tube/Tube.h
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/Tube_arithmetic.cpp b/src/tube/Tube_arithmetic.cpp
index 9503eded..f779132c 100644
--- a/src/tube/Tube_arithmetic.cpp
+++ b/src/tube/Tube_arithmetic.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/Tube_base.cpp b/src/tube/Tube_base.cpp
index 271b3764..e7139ff9 100644
--- a/src/tube/Tube_base.cpp
+++ b/src/tube/Tube_base.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/Tube_ctc.cpp b/src/tube/Tube_ctc.cpp
index 057ab5cf..826a1b3a 100644
--- a/src/tube/Tube_ctc.cpp
+++ b/src/tube/Tube_ctc.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/Tube_integration.cpp b/src/tube/Tube_integration.cpp
index ce0267ac..1185495a 100644
--- a/src/tube/Tube_integration.cpp
+++ b/src/tube/Tube_integration.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/Tube_serialization.cpp b/src/tube/Tube_serialization.cpp
index 66065f02..b11ae457 100644
--- a/src/tube/Tube_serialization.cpp
+++ b/src/tube/Tube_serialization.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/exceptions/DomainTubeException.cpp b/src/tube/exceptions/DomainTubeException.cpp
index 1acd022f..d401c1ac 100644
--- a/src/tube/exceptions/DomainTubeException.cpp
+++ b/src/tube/exceptions/DomainTubeException.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/exceptions/DomainTubeException.h b/src/tube/exceptions/DomainTubeException.h
index 546f1c31..9d5bd98d 100644
--- a/src/tube/exceptions/DomainTubeException.h
+++ b/src/tube/exceptions/DomainTubeException.h
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/exceptions/EmptyTubeException.cpp b/src/tube/exceptions/EmptyTubeException.cpp
index 0498a38f..def439b3 100644
--- a/src/tube/exceptions/EmptyTubeException.cpp
+++ b/src/tube/exceptions/EmptyTubeException.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/exceptions/EmptyTubeException.h b/src/tube/exceptions/EmptyTubeException.h
index f33d990c..50d50da0 100644
--- a/src/tube/exceptions/EmptyTubeException.h
+++ b/src/tube/exceptions/EmptyTubeException.h
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/exceptions/TubeException.cpp b/src/tube/exceptions/TubeException.cpp
index e26e3ef5..df0fb216 100644
--- a/src/tube/exceptions/TubeException.cpp
+++ b/src/tube/exceptions/TubeException.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/src/tube/exceptions/TubeException.h b/src/tube/exceptions/TubeException.h
index feff21fa..3ef30ca9 100644
--- a/src/tube/exceptions/TubeException.h
+++ b/src/tube/exceptions/TubeException.h
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/tests/catch/catch_interval.hpp b/tests/catch/catch_interval.hpp
index 06d7f851..c48cd324 100644
--- a/tests/catch/catch_interval.hpp
+++ b/tests/catch/catch_interval.hpp
@@ -9,7 +9,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/tests/tests_base/tests_base.cpp b/tests/tests_base/tests_base.cpp
index ab459160..03cde089 100644
--- a/tests/tests_base/tests_base.cpp
+++ b/tests/tests_base/tests_base.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/tests/tests_cases.hpp b/tests/tests_cases.hpp
index ea8e633e..e35422a6 100644
--- a/tests/tests_cases.hpp
+++ b/tests/tests_cases.hpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/tests/tests_ctc/tests_ctc.cpp b/tests/tests_ctc/tests_ctc.cpp
index f66d1ece..3dabb31d 100644
--- a/tests/tests_ctc/tests_ctc.cpp
+++ b/tests/tests_ctc/tests_ctc.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/tests/tests_integ/tests_integ.cpp b/tests/tests_integ/tests_integ.cpp
index d9893af7..f00c80a7 100644
--- a/tests/tests_integ/tests_integ.cpp
+++ b/tests/tests_integ/tests_integ.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -
diff --git a/tests/tests_serialization/tests_serialization.cpp b/tests/tests_serialization/tests_serialization.cpp
index 2dc584dc..c6cf6ae7 100644
--- a/tests/tests_serialization/tests_serialization.cpp
+++ b/tests/tests_serialization/tests_serialization.cpp
@@ -3,7 +3,7 @@
  * ============================================================================
  *  Copyright : Copyright 2017 Simon Rohou
  *  License   : This program is distributed under the terms of
- *              the GNU General Public License (GPL). See the file LICENSE.
+ *              the GNU Lesser General Public License (LGPL).
  *
  *  Author(s) : Simon Rohou
  *  Bug fixes : -