%0 Journal Article %A A. K. Gushchin %T On an estimate of the Dirichlet integral in unbounded domains %J Sbornik. Mathematics %D 1976 %P 249-261 %V 28 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1976_28_2_a7/ %G en %F SM_1976_28_2_a7