%0 Journal Article
%A A. A. Shkalikov
%T Perturbations of self-adjoint and normal operators with discrete spectrum
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2016
%P 907-964
%V 71
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_2016_71_5_a1/
%G en
%F RM_2016_71_5_a1