%0 Journal Article %A R. D. Lazarov %A Yu. I. Mokin %T On the convergence of difference schemes for Poisson equations in $L_p$-metrics %J Doklady Akademii Nauk %D 1981 %P 796-801 %V 261 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1981_261_4_a5/ %G ru %F DAN_1981_261_4_a5