TY - JOUR AU - M. N. Mishkov AU - V. S. Ryaben'kii TI - On replacing an outer boundary problem with associated periodic problem JO - Matematičeskoe modelirovanie PY - 1997 SP - 101 EP - 110 VL - 9 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM_1997_9_11_a8/ LA - ru ID - MM_1997_9_11_a8 ER -