TY - JOUR AU - Nguyen Thya Hop TI - A generalized Green's matrix for a problem with a directional derivative for a system of elliptic type in several variables JO - Differencialʹnye uravneniâ PY - 1966 SP - 574 EP - 581 VL - 2 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1966_2_4_a12/ LA - ru ID - DE_1966_2_4_a12 ER -