TY - JOUR AU - B. Baimenov TI - Boundary value problems for equations of mixed-composite type JO - Differencialʹnye uravneniâ PY - 1981 SP - 13 EP - 17 VL - 17 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1981_17_1_a1/ LA - ru ID - DE_1981_17_1_a1 ER -