%0 Journal Article
%A S. G. Krasovskii
%T A Criterion for the Invariance of Characteristic Exponents of Linear Systems with a Small Parameter Multiplying the Derivative
%J Differencialʹnye uravneniâ
%D 2003
%P 1315-1324
%V 39
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2003_39_10_a2/
%G ru
%F DE_2003_39_10_a2