Original source may be found at http://octave.sf.net.

Files: debian/*
Copyright: © 2008 Olafur Jens Sigurdsson <ojsbug@gmail.com>
License: GPL-3+
 The Debian packaging information is under the GPL, version 3 or later.

Files: src/*
Copyright © 2008 Xavier Delacour <xavier.delacour@gmail.com>
License: BSD

The complete text of the GNU General Public License, version 3, can be
found in the file /usr/share/common-licenses/GPL-3. The complete text
of the BSD license can be found in /usr/share/common-licenses/BSD.