Copyright © 1995, 2001–2003, 2005–2013 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document under the terms of either:
- the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with the Front-Cover texts being “A GNU Manual,” and with the Back-Cover Texts as in (a) below. A copy of the license is included in the section entitled “GNU Free Documentation License.”
(a) The FSF's Back-Cover Text is: “You have the freedom to copy and modify this GNU manual.”
- the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. A copy of the license is included in the section entitled “GNU General Public License.”