%0 Journal Article
%A S. N. Naboko
%T On the separation of spectral subspaces of a nonselfadjoint operator
%J Doklady Akademii Nauk
%D 1978
%P 1052-1055
%V 239
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1978_239_5_a9/
%G ru
%F DAN_1978_239_5_a9