%0 Journal Article %A N. V. Torop %T Systems whose solutions are functions of solutions of linear systems %J Differencialʹnye uravneniâ %D 1981 %P 747-748 %V 17 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_4_a22/ %G ru %F DE_1981_17_4_a22