%0 Journal Article
%A V. L. Azarov
%A L. N. Lupichev
%A G. A. Tavrizov
%T A theorem in the perturbation theory of linear operators and its applications in the theory of linear dynamic systems
%J Doklady Akademii Nauk
%D 1975
%P 56-59
%V 223
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_223_1_a13/
%G ru
%F DAN_1975_223_1_a13