This is the Debian prepackaged version of FBReader.

It was originally Debianised by Nikolay Pultsin <geometer@fbreader.org>.
Sources are downloaded from its website at:

	http://www.fbreader.org/

It is copyright as follows:

/*
 * Copyright (C) 2004-2009 Geometer Plus <contact@geometerplus.com>
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

On Debian systems, the full text of the GPL can be found in 
/usr/share/common-licenses/GPL

It also includes html entity files with these licenses:

<!-- Portions (C) International Organization for Standardization 1986
     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.
-->

<!-- Copyright (C) 2001, 2002 Organization for the Advancement of Structured
     Information Standards (OASIS).

     Permission to use, copy, modify and distribute this entity set
     and its accompanying documentation for any purpose and without
     fee is hereby granted in perpetuity, provided that the above
     copyright notice and this paragraph appear in all copies. The
     copyright holders make no representation about the suitability of
     the entities for any purpose. It is provided "as is" without
     expressed or implied warranty.

-->