%0 Journal Article %A K. Kh. Boimatov %T $L_2$-estimates of generalized solutions of elliptic differential equations %J Doklady Akademii Nauk %D 1975 %P 521-524 %V 223 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_223_3_a0/ %G ru %F DAN_1975_223_3_a0