%0 Journal Article %A G. S. Krechetov %T Asymptotic stability of the zero solution of a non-autonomous system of two differential equations. II %J Differencialʹnye uravneniâ %D 1968 %P 973-982 %V 4 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1968_4_6_a1/ %G ru %F DE_1968_4_6_a1