%0 Journal Article
%A A. G. Kamenskii
%T Boundary value problems for equations with formally symmetric differential-difference operators
%J Differencialʹnye uravneniâ
%D 1976
%P 815-824
%V 12
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_5_a3/
%G ru
%F DE_1976_12_5_a3