%0 Journal Article %A Yu. V. Malyshev %A V. P. Zakharov %T Lyapunov functions and self-induced oscillations %J Differencialʹnye uravneniâ %D 1987 %P 722-724 %V 23 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_4_a23/ %G ru %F DE_1987_23_4_a23