%0 Journal Article
%A B. Yu. Sternin
%T Relative elliptic theory and the S.\,L.~Sobolev problem
%J Doklady Akademii Nauk
%D 1976
%P 287-290
%V 230
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1976_230_2_a9/
%G ru
%F DAN_1976_230_2_a9