1. L. Schiff, Phys. Rev.,83, 52 (1951).
2. Ferdinand et al., Nucl. Instrum. Mater.,107, 329 (1973).
3. V. E. Zhuchko and Yu. M. Tsipenyuk, At. Energ.,39, No. 1, 66 (1975).
4. A. G. Belov et al., JINR Preprint R9-82-301 [in Russian], Dubna (1982).
5. V. V. Galaktionov et al., Library of Programs in Fortran and the Automatic Code Madlen for a BÉSM-6 Computer [in Russian], Vol. 2, JINR, Dubna (1977), p. 321.