TY - JOUR AU - A. I. Vol'pert AU - S. I. Khudyaev TI - On the Cauchy problem for composite systems of nonlinear differential equations JO - Sbornik. Mathematics PY - 1972 SP - 517 EP - 544 VL - 16 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1972_16_4_a2/ LA - en ID - SM_1972_16_4_a2 ER -