%0 Journal Article %A V. P. Mikhailov %T On the boundary values of solutions of second-order elliptic equations %J Sbornik. Mathematics %D 1976 %P 3-11 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1976_29_1_a1/ %G en %F SM_1976_29_1_a1