%0 Journal Article %A V. M. Filippov %A A. N. Skorohodov %T A quadratic functional for the heat equation %J Differencialʹnye uravneniâ %D 1977 %P 1113-1123 %V 13 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_6_a16/ %G ru %F DE_1977_13_6_a16