%0 Journal Article %A V. G. Artyugin %T Methods for Grid Equations in the Case of Inhomogeneous Media %J Differencialʹnye uravneniâ %D 2001 %P 1000-1002 %V 37 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2001_37_7_a16/ %G ru %F DE_2001_37_7_a16