Copyright for debiandoc-sgml source package in Bullseye

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source: http://git.debian.org/?p=collab-maint/debiandoc-sgml.git
Comment: This the Debian package of DebianDoc-SGML, an SGML based
 documentation formatting package used for the Debian manuals.
 .
 It was assembled by Ian Jackson .  It was
 maintained by Ardo van Rangelrooij . It is
 currently maintained by Osamu Aoki .
 .
 The DTD was inspired by linuxdoc.dtd which was based on QWERTZ.
 Contributors to linuxdoc.dtd include Matt Welsh, Greg Hankins, Eric
 Raymond, Marc Baudoin, Tristan Debeaupuis and Tom Gordon.

Files: *
Copyright: Copyright (c) 1996 Ian Jackson
           Copyright (C) 1997 Christian Leutloff
           Copyright (c) 1998-2004 Ardo van Rangelrooij
           Copyright (c) 2005-2012 Osamu Aoki
License: GPL-2+
 This is free software; you may 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, or (at your option) any later
 version.
 .
 This 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 with
 your Debian GNU/Linux system, in /usr/share/common-licenses/GPL, or
 with the debiandoc-sgml source package as the file COPYING.  If not,
 write to the Free Software Foundation, Inc.,
 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.

Files: sgml/entities/debiandoc-lat*
Copyright: (C) International Organization for Standardization 1986
License: Other
 Permission to copy in any form is granted for use with
 conforming SGML systems and applications as defined in
 ISO 8879, provided this notice is included in all copies.