%0 Journal Article %A Z. G. Sheftel %T Solvability in~$L_p$ and classical solubility of the of general boundary value problems for elliptic equations with discontinuous coefficients %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1964 %V 19 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1964_19_4_a20/ %G ru %F RM_1964_19_4_a20