TY - JOUR AU - A. K. Gushchin AU - V. P. Mikhailov TI - On the unique solvability of nonlocal problems for an elliptic JO - Doklady Akademii Nauk PY - 1996 SP - 7 EP - 8 VL - 351 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1996_351_1_a0/ LA - ru ID - DAN_1996_351_1_a0 ER -