%0 Journal Article %A G. S. Krechetov %T Asymptotic properties of solutions of differential systems in a critical sense %J Differencialʹnye uravneniâ %D 1980 %P 1023-1031 %V 16 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1980_16_6_a3/ %G ru %F DE_1980_16_6_a3