%0 Journal Article %A V. S. Samovol %T The equivalence of systems of differential equations with reducing contraction %J Differencialʹnye uravneniâ %D 1978 %P 1400-1413 %V 14 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_8_a5/ %G ru %F DE_1978_14_8_a5