%0 Journal Article %A I. A. Sultanova %T Effective estimation of the error of the network method of solution of boundary value problems for the Laplace and Poisson equations on a rectangle and on special triangles %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1971 %P 1205-1218 %V 11 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1971_11_5_a8/ %G ru %F ZVMMF_1971_11_5_a8