%0 Journal Article %A S. Yu. Pilyugin %T The phase diagrams of three-dimensional systems of differential equations of Morse--Smale type %J Differencialʹnye uravneniâ %D 1973 %P 1256-1261 %V 9 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_7_a9/ %G ru %F DE_1973_9_7_a9