%0 Journal Article
%A V. D. Budaev
%T Criteria for the Bessel property and the Riesz basis property of systems of root functions of differential operators. II
%J Differencialʹnye uravneniâ
%D 1992
%P 23-33
%V 28
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1992_28_1_a2/
%G ru
%F DE_1992_28_1_a2