Source: http://www.fastjet.fr/all-releases.html

Files: *
Copyright: M. Cacciari, G.P. Salam, G. Soyez
License: GPL-2.0+

  include/fastjet/PseudoJet.hh
    parts taken from CLHEP, which are GPL3/LGPL3
      Copyright 2003 Lynn Garren <garren@fnal.gov>
      Copyright Leif Lonnblad and Anders Nilsson.
      Copyright Evgueni Tcherniaev and Mark Fischler

  plugins/CMSIterativeCone/CMSIterativeConePlugin.cc
  plugins/CMSIterativeCone/SortByEt.h
    parts are
      Copyright CMS Group of CERN

  plugins/D0RunIICone/ConeJetInfo.hpp
    parts are
      Copyright 2000 Laurent Duflot

  plugins/D0RunIICone/ConeSplitMerge.hpp
    parts are
      Copyright 2000, 2007 Laurent Duflot
      Copyright 2000 Francois Touze

  plugins/D0RunIICone/HepEntity.h
      Copyright 2007 Lars Sonnenschein

  plugins/D0RunIICone/ILConeAlgorithm.hpp
      Copyright 2000 Francois Touze
      Copyright 2000 Laurent Duflot
      Copyright 2002 John Krane
      Copyright 2007 Lars Sonnenschein

  plugins/D0RunIICone/ProtoJet.hpp
      Copyright 2000 Francois Touze
      Copyright 2000 Laurent Duflot
      Copyright 2007 Lars Sonnenschein

  plugins/PxCone/pxcone.f
      Copyright Michael H. Seymour

  plugins/TrackJet/TrackJetPlugin.cc
      Copyright Leif Lonnblad
      Copyright Andy Buckley
      Copyright Jon Butterworth

  src/Voronoi.cc
  include/fastjet/internal/Voronoi.hh
    Copyright 1994 by AT&T Bell Laboratories
    Copyright Steven Fortune
    Copyright Shane O'Sullivan
    Copyright M. Cacciari, G.P. Salam, G. Soyez

    Permission to use, copy, modify, and distribute this software for
    any purpose without fee is hereby granted, provided that this
    entire notice is included in all copies of any software which is
    or includes a copy or modification of this software and in all
    copies of the supporting documentation for such software. THIS
    SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
    WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR AT&T MAKE ANY
    REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
    MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
    PURPOSE.

Files: debian/*
Copyright: 2011 Lifeng Sun <lifongsun@gmail.com>
License: GPL-2.0+

License: GPL-2.0+
 This package 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 package 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 <http://www.gnu.org/licenses/>
 .
 On Debian systems, the complete text of the GNU General
 Public License version 2 can be found in
 "/usr/share/common-licenses/GPL-2".