%0 Journal Article
%A Yu. I. Neimark
%A L. P. Shilnikov
%T A condition for the generation of periodic motions
%J Doklady Akademii Nauk
%D 1965
%P 1261-1264
%V 160
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1965_160_6_a9/
%G ru
%F DAN_1965_160_6_a9