Copyright (c) 2001-2008 Vincent Stehlé <vincent.stehle@free.fr> Permission is granted to copy, distribute and/or modify each page of this site under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
A copy of the license can be found on the GNU web site.