%0 Journal Article %A G. S. Krechetov %T Preservation of the asymptotic stability property in the case of a zero root %J Differencialʹnye uravneniâ %D 1973 %P 958-960 %V 9 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_5_a22/ %G ru %F DE_1973_9_5_a22