%0 Journal Article
%A V. A. Sadovnichii
%A B. E. Kanguzhin
%T A connection between the spectrum of a differential operator with symmetric coefficients and the boundary conditions
%J Doklady Akademii Nauk
%D 1982
%P 310-313
%V 267
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1982_267_2_a12/
%G ru
%F DAN_1982_267_2_a12