%0 Journal Article
%A Ya. A. Roitberg
%A Z. G. Sheftel
%T General boundary-value problems for elliptic equations with discontinuous coefficients
%J Doklady Akademii Nauk
%D 1963
%P 1034-1037
%V 148
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_148_5_a10/
%G ru
%F DAN_1963_148_5_a10