%0 Journal Article %A S. Yu. Pilyugin %T The structure of the boundary of the characteristic set of a structurally stable three-dimensional dissipative system %J Differencialʹnye uravneniâ %D 1973 %P 2152-2161 %V 9 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_12_a4/ %G ru %F DE_1973_9_12_a4