TY - JOUR AU - V. I. Zubov TI - The twisting problem for beams of charged particles JO - Doklady Akademii Nauk PY - 1994 SP - 142 EP - 145 VL - 335 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1994_335_2_a3/ LA - ru ID - DAN_1994_335_2_a3 ER -