TY - JOUR AU - A. H. Gudiev TI - The solvability in $W_2^1$ of the first boundary value problem for a second-order elliptic equation with principal part in divergence form JO - Doklady Akademii Nauk PY - 1968 SP - 518 EP - 521 VL - 178 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1968_178_3_a2/ LA - ru ID - DAN_1968_178_3_a2 ER -