%0 Journal Article %A V. V. Amel'kin %T The behavior of the integral curves of a certain system of two differential equations %J Differencialʹnye uravneniâ %D 1968 %P 1035-1042 %V 4 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1968_4_6_a8/ %G ru %F DE_1968_4_6_a8