%0 Journal Article %A G. S. Krechetov %T Asymptotic properties of the solutions of a certain system of two differential equations %J Differencialʹnye uravneniâ %D 1975 %P 798-804 %V 11 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1975_11_5_a2/ %G ru %F DE_1975_11_5_a2