%0 Journal Article
%A A. P. Makhmudov
%A M. M. Rasulov
%T On the perturbation of an isolated eigenvalue of finite
%J Doklady Akademii Nauk
%D 1994
%P 694-696
%V 335
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1994_335_6_a5/
%G ru
%F DAN_1994_335_6_a5