%0 Journal Article %A A. Ya. Kapitanov %T Qualitative investigation of a system in the space $\mathbf R^3$ %J Differencialʹnye uravneniâ %D 1984 %P 229-233 %V 20 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_2_a5/ %G ru %F DE_1984_20_2_a5