%0 Journal Article
%A L. N. Nikol'skaya
%T Criteria for stability of the point spectrum under completely continuous perturbations
%J Matematičeskie zametki
%D 1975
%P 601-607
%V 18
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1975_18_4_a13/
%G ru
%F MZM_1975_18_4_a13