This work has been released into the public domain by its author, Jean-Hervé Lorenzi. This applies worldwide. In some countries this may not be legally possible; if so: Jean-Hervé Lorenzi grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.