%0 Journal Article %A E. M. Landis %T The structure of nonessential sets with respect to the Dirichlet problem for second-order elliptic operators with discontinuous coefficients %J Trudy Moskovskogo matematičeskogo obŝestva %D 1983 %P 124-135 %V 46 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1983_46_a4/ %G ru %F MMO_1983_46_a4