TY - JOUR AU - A. M. Abdrakhmanov TI - The Dirichlet problem for a degenerate not-strongly elliptic system of two second-order equations JO - Differencialʹnye uravneniâ PY - 1980 SP - 3 EP - 12 VL - 16 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1980_16_1_a0/ LA - ru ID - DE_1980_16_1_a0 ER -