%0 Journal Article
%A G. G. Islamov
%T Estimates for a minimal rank of finite-dimensional perturbations of Green operators
%J Differencialʹnye uravneniâ
%D 1989
%P 1496-1503
%V 25
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1989_25_9_a3/
%G ru
%F DE_1989_25_9_a3