%0 Journal Article %A V. A. Kostin %T The smoothness of the solutions of certain equations of parabolic type. III %J Differencialʹnye uravneniâ %D 1976 %P 2097-2100 %V 12 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_11_a24/ %G ru %F DE_1976_12_11_a24