Wherever possible we utilize materials, software and systems which are made available under public license. We will provide works to others under the same licences.

The GNU General Public License (GNU GPL or simply GPL) is a widely used free software license, originally written by Richard Stallman for the GNU project.

The IBM Public License is a free software / open-source software license written and sometimes used by IBM. It is approved by the Open Source Initiative and is described as a "free ...

GNU Library General Public License [ English | Japanese] Please note that the GNU Library General Public License has been succeeded by the GNU Lesser General Public License (which ...

GNU GENERAL PUBLIC LICENSE. Version 3, 29 June 2007. Copyright © 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies ...