%0 Journal Article %A G. P. Astrakhantsev %A L. A. Rukhovets %T The method of relaxation on a sequence of meshes for elliptic equations with natural boundary conditions %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1981 %P 926-944 %V 21 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1981_21_4_a9/ %G ru %F ZVMMF_1981_21_4_a9