TY - JOUR AU - E. A. Zagustina AU - R. È. Kalaba TI - The Cauchy system for nonlinear problems with two boundary conditions JO - Differencialʹnye uravneniâ PY - 1981 SP - 562 EP - 565 VL - 17 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1981_17_3_a13/ LA - ru ID - DE_1981_17_3_a13 ER -