%0 Journal Article
%A E. A. Begovatov
%T A condition for the completeness of the system of root subspaces of a Sturm--Liouville type operator in Hilbert space
%J Differencialʹnye uravneniâ
%D 1972
%P 1738-1744
%V 8
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1972_8_10_a1/
%G ru
%F DE_1972_8_10_a1