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.
This file is licensed under the Creative Commons Attribution-Noncommercial 3.0 Unported. In short: you are free to share and make derivative works of the file for non-commercial purposes under the conditions that you appropriately attribute it, and that you distribute it only under a license identical to this one.