TY - JOUR AU - F. P. Vasil'ev AU - R. P. Ivanov TI - Certain approximate methods of solving time-optimal problems in Banach spaces in the presence of phase constraints JO - Doklady Akademii Nauk PY - 1970 SP - 526 EP - 529 VL - 195 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_195_3_a2/ LA - ru ID - DAN_1970_195_3_a2 ER -