TY - JOUR AU - A. V. Lapin TI - Convergence of difference schemes for boundary problems in an arbitrary domain JO - Issledovaniya po Prikladnoi Matematike i Informatike PY - 1973 SP - 90 EP - 93 VL - 1 IS - 1 UR - http://geodesic.mathdoc.fr/item/KUIPM_1973_1_1_a12/ LA - ru ID - KUIPM_1973_1_1_a12 ER -