TY - JOUR AU - G. M. Goncharov TI - On some existence theorems for the solutions of a class of nonlinear operator equations JO - Matematičeskie zametki PY - 1970 SP - 229 EP - 237 VL - 7 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1970_7_2_a11/ LA - ru ID - MZM_1970_7_2_a11 ER -