TY - JOUR AU - V. R. Portnov TI - The first boundary value problem with weighted boundary conditions for degenerate higher order elliptic equations JO - Doklady Akademii Nauk PY - 1970 SP - 783 EP - 786 VL - 195 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_195_4_a7/ LA - ru ID - DAN_1970_195_4_a7 ER -