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 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUIPM_1973_a12/ LA - ru ID - KUIPM_1973_a12 ER -