Copyright copyright{} 2002,2005 The pygsl Team.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 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 section ref{cha:free-documentation-license} entitled ``GNU Free Documentation License’’.