+@copying
+Copyright @copyright{} 1999--2006 by the authors
+
+@quotation
+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.
+A copy of the license is included in the section entitled ``GNU
+Free Documentation License''.
+@end quotation
+@end copying