%0 Journal Article
%A I. N. Braeutigam
%A K. A. Mirzoev
%A T. A. Safonova
%T An Analog of Orlov's Theorem on the Deficiency Index of Second-Order Differential Operators
%J Matematičeskie zametki
%D 2015
%P 314-317
%V 97
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2015_97_2_a14/
%G ru
%F MZM_2015_97_2_a14