TY - JOUR AU - T. Kh. Enikeeva TI - On the Cauchy problem for a~class of second order nonlinear differential equations in a~Banach space JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1969 VL - 24 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1969_24_1_a14/ LA - ru ID - RM_1969_24_1_a14 ER -