%0 Journal Article
%A Ya. A. Roitberg
%T A homeomorphism theorem for general elliptic boundary value problems with boundary conditions that are not the normal ones
%J Doklady Akademii Nauk
%D 1970
%P 1228-1231
%V 191
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_191_6_a7/
%G ru
%F DAN_1970_191_6_a7