%0 Journal Article %A S. N. Kirpichnikov %A A. G. Stepanov %T The existence of structurally stable global oscillators in a class of sixth-order dynamical systems %J Differencialʹnye uravneniâ %D 1985 %P 2057-2063 %V 21 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_12_a4/ %G ru %F DE_1985_21_12_a4