%0 Journal Article
%A O. P. Stepanovich
%T Preservation of the characteristic vectors of a linear system under perturbation of its coefficients
%J Differencialʹnye uravneniâ
%D 1991
%P 1990-1994
%V 27
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_11_a19/
%G ru
%F DE_1991_27_11_a19