%0 Journal Article
%A V. P. Maslov
%T A criterion for discreteness of the spectrum of a Sturm--Liouville equation with an operator coefficient (apropos the article by B.~M.~Levitan and G.~A.~Suvorchenkova)
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1968
%P 63-67
%V 2
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1968_2_2_a6/
%G ru
%F FAA_1968_2_2_a6