TY - JOUR AU - E. S. Mashkova AU - V. A. Molchanov TI - Multiple collisions in the scattering of ions by crystals JO - Doklady Akademii Nauk PY - 1967 SP - 813 EP - 816 VL - 172 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_172_4_a17/ LA - ru ID - DAN_1967_172_4_a17 ER -