%0 Journal Article %A E. A. Tomberg %T Self-induced oscillations in nonlinear systems %J Differencialʹnye uravneniâ %D 1991 %P 1563-1574 %V 27 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_9_a10/ %G ru %F DE_1991_27_9_a10