TY - JOUR AU - V. A. Rastrenin TI - Approximation of equations in Banach space with a nonlinear multivalued operator JO - Differencialʹnye uravneniâ PY - 1979 SP - 560 EP - 562 VL - 15 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1979_15_3_a22/ LA - ru ID - DE_1979_15_3_a22 ER -