TY - JOUR AU - G. A. Chechkin TI - Averaging of boundary value problems with a~singular perturbation of the~boundary conditions JO - Sbornik. Mathematics PY - 1994 SP - 191 EP - 222 VL - 79 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1994_79_1_a12/ LA - en ID - SM_1994_79_1_a12 ER -