%0 Journal Article
%A A. A. Dezin
%T Spectral characteristics of general boundary-value problems for operator~$D^2$
%J Matematičeskie zametki
%D 1985
%P 249-256
%V 37
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1985_37_2_a11/
%G ru
%F MZM_1985_37_2_a11