%0 Journal Article %A A. V. Solov'ev %A E. V. Solov'eva %A V. F. Tishkin %A A. P. Favorski %A M. Yu. Shashkov %T Investigation of the approximation of difference operators on a grid of Dirichlet cells %J Differencialʹnye uravneniâ %D 1986 %P 1227-1237 %V 22 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1986_22_7_a15/ %G ru %F DE_1986_22_7_a15