%0 Journal Article
%A L. Ya. Adrianova
%T The structure of the Persidskiǐ spectrum of a second-order linear system
%J Differencialʹnye uravneniâ
%D 1983
%P 2027-2031
%V 19
%N 12
%U http://geodesic.mathdoc.fr/item/DE_1983_19_12_a0/
%G ru
%F DE_1983_19_12_a0