%0 Journal Article
%A Weiwen Shao
%A Fuxing Zhang
%A Ya Li
%T Existence and uniqueness of periodic solutions for a kind of
 nonlinear $n$th order differential equations with delays
%J Annales Polonici Mathematici
%D 2008
%P 15-27
%V 94
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap94-1-2/
%R 10.4064/ap94-1-2
%G en
%F 10_4064_ap94_1_2