%0 Journal Article %A V. N. Monakov %T An analogue of Perron's theorem for strongly nonlinear systems of differential equations %J Differencialʹnye uravneniâ %D 1972 %P 2096-2097 %V 8 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_11_a25/ %G ru %F DE_1972_8_11_a25