%0 Journal Article %A O. A. Oleinik %A G. A. Iosif'yan %T Energy estimates of the generalized solutions of boundary value problems for second order elliptic equations, and their applications %J Doklady Akademii Nauk %D 1977 %P 1257-1260 %V 232 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_232_6_a6/ %G ru %F DAN_1977_232_6_a6