%0 Journal Article
%A E. K. Makarov
%T On a criterion for joint behavior of higher sigma exponents of a triangular system and the system of its diagonal approximation
%J Differencialʹnye uravneniâ
%D 1991
%P 910-911
%V 27
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_5_a24/
%G ru
%F DE_1991_27_5_a24