Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/

Files: *
Copyright: (C) 2016-2018 Christoph Berg
License: GPL-3+

Files: definitions.units*
Copyright: (C) 1996-2002, 2004-2017
           Free Software Foundation, Inc
License: GPL-3+

License: GPL-3+
 This program 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.
 .
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 The full text of the GPL 3 is distributed as in
 /usr/share/common-licenses/GPL-3 on Debian systems.