1. J.F. Martin, G.J. Feldman, G. Hanson et al., Phys. Rev. D 20 (1979) 5.
2. S.I. Manayenkov: preprint PNPI NP-19-2000 No. 2362, Gatchina, 2000; hep-ex/0006001.
3. G. Ingelman, A. Edin, J. Rathsman: preprint DESY 96-057, Hamburg, 1996. Sjöstrand. Comp. Phys. Comm. 82 (1994) 1.
4. A. Brüll: PhD thesis, Univ. of Freiburg, 1993.
5. Ph. Geiger, N. Makins, R. Volk et al.: the HERMES Monte Carlo, http://www-hermes.desy.de/hmc/.