Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ Upstream-Name: medAdherence Upstream-Contact: Xiangyang Ye Source: http://cran.r-project.org/src/contrib/Archive/medAdherence/ Files: * Copyright: 2009-2012 Xiangyang Ye, Pharmacotherapy Outcomes Research Center, Univertiy of Utah License: GPL-2+ Comment: The upstream file is lacking an explicite COPYRIGHT file but I've go the following mail from the author: . On Mon, Feb 01, 2010 at 10:47:07AM -0700, Xiangyang Ye wrote: Is it OK for you add the file GPLv2 (http://www.gnu.org/licenses/gpl-2.0.txt) in the tarball given the package was developed under GPL version 2? I am comfortable for this if it's acceptable. I promise that I will add this text file in the future revision. . I think there is no need to formally change the tarball if this permission is explicitly given. Files: debian/* Copyright: 2008-2016 Andreas Tille 2009 Charles Plessy License: GPL-2+ License: GPL-2+ 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 2 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. . You should have received a copy of the GNU General Public License along with this program. If not, see . . On Debian systems, the complete text of the GNU General Public License version 2 can be found in `/usr/share/common-licenses/GPL-2'.