%0 Journal Article
%A S. Ya. Yakubov
%A B. A. Aliev
%T The Fredholm property of a boundary value problem, with an operator in the boundary conditions, for an elliptic differential operator equation of second order
%J Doklady Akademii Nauk
%D 1981
%P 1071-1074
%V 257
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1981_257_5_a10/
%G ru
%F DAN_1981_257_5_a10