%0 Journal Article %A R. D. Lazarov %T On the question of the convergence of difference schemes for generalized solutions of the Poisson equation %J Differencialʹnye uravneniâ %D 1981 %P 1285-1294 %V 17 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_7_a13/ %G ru %F DE_1981_17_7_a13