TY - JOUR AU - A. D. Gorbunov TI - On a criterion for the existence of fixed points of a continuous operator on a function space JO - Doklady Akademii Nauk PY - 1976 SP - 781 EP - 783 VL - 227 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1976_227_4_a1/ LA - ru ID - DAN_1976_227_4_a1 ER -