%0 Journal Article %A B. F. Bylov %A N. A. Izobov %T Necessary and sufficient conditions for the stability of the characteristic exponents of a linear system %J Differencialʹnye uravneniâ %D 1969 %P 1794-1803 %V 5 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1969_5_10_a4/ %G ru %F DE_1969_5_10_a4