Source: http://sourceforge.net/projects/tipptrainer/

Files: debian/*
Copyright: © 2000-2008, Andreas Tille <tille@debian.org>
License: GPL-2+
 This package is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 3 of the License, or
 (at your option) any later version.

Files: *
Copyright: (c) 2000-2003, Daniel Reith <DanR@gmx.de>
                          Matthias Kleine <matthias.kleine@selflinux.de>
                          Felix <felix@musik-workshop.de>
           (c) 2003-2005, Hendrik Sattler <pingos@hendrik-sattler.de>
                          Heiko Degenhardt <hede@pingos.org>
                          Torsten Hemm <sunshine@goldenergrund.de>
                          The Tipptrainer Team <tipptrainer@pingos.org>
License: GPL-2+
 This package is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.

On Debian systems, the complete text of the licenses can be found in:
GPL-2 - `/usr/share/common-licenses/GPL-2'