Copyright (c) 2003 Bernhard Wymann.
Permission is granted to copy, distribute and/or modify this document 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 is included in the section entitled "GNU Free Documentation License".
Copyright (c) 2003 Jean-Christophe Durieu.
The robot tutorial drawing on the title page has been created by Jean-Christophe Durieu. Thank you for the permission to use it on the title page.
A copy of the license is provided with this Document. The most recent versions are available here.