TY - JOUR AU - A. N. Firsov TI - Weakly compact sets and fixed points of nonexpansive mappings in a Banach space JO - Doklady Akademii Nauk PY - 1980 SP - 559 EP - 561 VL - 254 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1980_254_3_a10/ LA - ru ID - DAN_1980_254_3_a10 ER -