TY - JOUR AU - L. A. Zhivotovskii TI - The existence and uniqueness of the solutions of differential equations with a retardation which depends on the solution and its derivative JO - Differencialʹnye uravneniâ PY - 1969 SP - 880 EP - 889 VL - 5 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1969_5_5_a9/ LA - ru ID - DE_1969_5_5_a9 ER -