TY - JOUR AU - M. G. Gasymov TI - On the solvability of boundary value problems for a class of operator differential equations JO - Doklady Akademii Nauk PY - 1977 SP - 505 EP - 508 VL - 235 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1977_235_3_a0/ LA - ru ID - DAN_1977_235_3_a0 ER -