%0 Journal Article %A D. E. Levin %T Removable sets for elliptic equations with discontinuous coefficients %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1997 %P 3-6 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1997_3_a0/ %G ru %F VMUMM_1997_3_a0