1. The GEANT3 home page: http://wwwinfo.cern.ch/asdoc/geant_html3/geantall.html
2. The GEANT4 home page: http://wwwinfo.cern.ch/asd/geant4/geant4.html
3. GEANT4 simulation of energy losses of slow hadrons, V. Ivantchenko et al., CERN-99-121, INFN/AE-99/20, (September 1999);
4. GEANT4 simulation of energy losses of ions, S. Giani et al., INFN/AE-99/21, (November 1999); private communications with V. Ivantchenko and L. Urbán (e-mail: Vladimir.Ivantchenko@cern.ch)
5. The GEANT4 documentation (in particular physical processes): http://wwwinfo.cern.ch/asd/geant4/G4UsersDocuments/Overview/html/index.html