TY - JOUR AU - A. L. Skubachevskii TI - Elliptic problems with nonlocal conditions near the boundary JO - Sbornik. Mathematics PY - 1987 SP - 293 EP - 316 VL - 57 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1987_57_1_a18/ LA - en ID - SM_1987_57_1_a18 ER -