%0 Journal Article
%A N. Ya. Krupnik
%T A quasi-nilpotency condition for integral operators. Perturbation of operators of local type
%J Doklady Akademii Nauk
%D 1977
%P 754-757
%V 234
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1977_234_4_a5/
%G ru
%F DAN_1977_234_4_a5