%0 Journal Article %A Yu. E. Boyarintsev %T Convergence of difference schemes for equations with variable coefficients %J Informatics and Automation %D 1966 %P 16-37 %V 74 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1966_74_a2/ %G ru %F TRSPY_1966_74_a2