%0 Journal Article
%A I. A. Volkov
%T Boundaries of a set of characteristic exponents of linear differential systems with higher-order perturbations
%J Differencialʹnye uravneniâ
%D 1991
%P 2050-2053
%V 27
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_12_a3/
%G ru
%F DE_1991_27_12_a3