%0 Journal Article %A S. Yu. Pilyugin %T The topological equivalence of structurally stable three-dimensional systems without periodic trajectories %J Differencialʹnye uravneniâ %D 1975 %P 1375-1387 %V 11 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1975_11_8_a3/ %G ru %F DE_1975_11_8_a3