evtgen is hosted by Hepforge, IPPP Durham

EvtGen Licence

The EvtGen package is
Copyright 1998-2020 CERN for the benefit of the EvtGen authors

Versions of the package starting with 2.0.0 are distributed under the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The package contains a copy of the full text of the licence in the file COPYING in the package root directory. In addition, each source file includes the following notices:

Copyright 1998-2020 CERN for the benefit of the EvtGen authors

This file is part of EvtGen.

EvtGen 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 3 of the License, or
(at your option) any later version.

EvtGen 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 EvtGen.  If not, see <https://www.gnu.org/licenses/>.