%0 Journal Article %A A. V. Gulin %A I. V. Fryazinov %T The exactness of the scheme of variable directions for the heat equation in an arbitrary domain %J Differencialʹnye uravneniâ %D 1976 %P 1906-1914 %V 12 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_10_a17/ %G ru %F DE_1976_12_10_a17