TY - JOUR AU - P. G. Aizengendler AU - M. M. Vainberg TI - The branching of periodic solutions of autonomous systems and of differential equations in Banach spaces JO - Doklady Akademii Nauk PY - 1967 SP - 9 EP - 12 VL - 176 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_176_1_a0/ LA - ru ID - DAN_1967_176_1_a0 ER -