%0 Journal Article
%A Li, Yongkun
%A Zhang, Tianwei
%A Suo, Jianfeng
%T Existence of three positive periodic solutions for differential systems with feedback controls on time scales
%J Electronic Journal of Differential Equations
%D 2010
%V 2010
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a148/
%G en
%F EJDE_2010__2010__a148