%0 Journal Article %A S. V. Bogatyrev %T Separation of motions in some classes of differential systems %J Differencialʹnye uravneniâ %D 1995 %P 923-933 %V 31 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1995_31_6_a0/ %G ru %F DE_1995_31_6_a0