TY - JOUR AU - N. A. Ivanov TI - The almost differentiability with respect to parameters of the solutions of a system of first order ordinary differential equations JO - Differencialʹnye uravneniâ PY - 1972 SP - 1882 EP - 1885 VL - 8 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1972_8_10_a20/ LA - ru ID - DE_1972_8_10_a20 ER -