%0 Journal Article
%A Ya. A. Roitberg
%A Z. G. Sheftel
%T On the denseness of solutions to elliptic problems with localized
%J Doklady Akademii Nauk
%D 1989
%P 1317-1320
%V 305
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1989_305_6_a7/
%G ru
%F DAN_1989_305_6_a7