Copyright for libstatistics-linefit-perl source package in Xenial

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Statistics::Linefit
Upstream-Contact: Richard Anderson 
Source: http://search.cpan.org/dist/Statistics-LineFit/
License: GPL-1+ or Artistic

Files: *
Copyright: 2004, Richard Anderson 
License: GPL-1+ or Artistic
Comment: As there is no statement of copyright ownership in the code
 itself, we are assuming that the author is the copyright holder under
 the Berne Convention for the Protection of Literary and Artistic
 Works.

Files: debian/*
Copyright: 2012, Harlan Lieberman-Berg 
License: GPL-1+ or Artistic

License: Artistic
 This program is free software; you can redistribute it and/or modify
 it under the terms of the Artistic License, which comes with Perl.
 .
 On Debian systems, the complete text of the Artistic License can be
 found in `/usr/share/common-licenses/Artistic'.

License: GPL-1+
 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 1, or (at your option)
 any later version.
 .
 On Debian systems, the complete text of version 1 of the GNU General
 Public License can be found in `/usr/share/common-licenses/GPL-1'.