%0 Journal Article %A V. M. Govorov %T The membership in the class $W_2^1$ of the classical solution of the Dirichlet problem for an elliptic equation in an arbitrary (bounded or unbounded) domain %J Differencialʹnye uravneniâ %D 1976 %P 2064-2067 %V 12 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_11_a17/ %G ru %F DE_1976_12_11_a17