%0 Journal Article
%A G. V. Radzievskii
%T Completeness of root vectors of a Keldysh pencil perturbed by an analytic operator-valued function $S(\lambda)$ with $S(\infty)=0$
%J Matematičeskie zametki
%D 1977
%P 391-398
%V 21
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1977_21_3_a10/
%G ru
%F MZM_1977_21_3_a10