%0 Journal Article %A G. V. Zhidkov %T The finiteness of the Dirichlet integral for a class of functions %J Differencialʹnye uravneniâ %D 1978 %P 1624-1631 %V 14 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_9_a10/ %G ru %F DE_1978_14_9_a10