Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ Upstream-Name: github.com/gorhill/cronexpr Upstream-Contact: Raymond Hill (https://github.com/gorhill) Source: https://github.com/go-sql-driver/mysql Files: * Copyright: 2013-2015 Raymond Hill License: GPL-3 or Apache-2.0 Files: debian/* Copyright: 2015, Victor Seva License: GPL-3 or Apache-2.0 License: GPL-3 or Apache-2.0 pick the one which suits you best: . GPL v3 see APL v2 see . On Debian systems, the full text of the GNU General Public License version 3 can be found in the file `/usr/share/common-licenses/GPL-3'. . On Debian systems, the full text of the Apache License version 2.0 can be found in the file `/usr/share/common-licenses/Apache-2.0'.