%0 Journal Article %A A. V. Lapin %T Convergence of difference schemes for boundary problems in an arbitrary domain %J Issledovaniya po Prikladnoi Matematike i Informatike %D 1973 %P 90-93 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUIPM_1973_a12/ %G ru %F KUIPM_1973_a12