TY - JOUR AU - S. V. Simeonov TI - A successive approximation process and its application in solving functional equations with non-linear operators of monotonic type JO - Doklady Akademii Nauk PY - 1961 SP - 1033 EP - 1034 VL - 138 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1961_138_5_a12/ LA - ru ID - DAN_1961_138_5_a12 ER -