%0 Journal Article %A L. N. Belyustina %A V. N. Belykh %T Qualitative investigation of a dynamical system on a cylinder %J Differencialʹnye uravneniâ %D 1973 %P 403-415 %V 9 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_3_a0/ %G ru %F DE_1973_9_3_a0