%0 Journal Article
%A V. D. Budaev
%T A necessary condition for the Riesz basis property of systems of
%J Doklady Akademii Nauk
%D 1991
%P 873-875
%V 321
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1991_321_5_a0/
%G ru
%F DAN_1991_321_5_a0