%0 Journal Article %A V. P. Zakharov %T Limiting cycles of infinite multiplicity %J Differencialʹnye uravneniâ %D 1965 %P 464-466 %V 1 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1965_1_4_a4/ %G ru %F DE_1965_1_4_a4