%0 Journal Article
%A Lakrib, Mustapha
%A Sari, Tewfik
%T Time averaging for ordinary differential equations and retarded functional differential equations
%J Electronic Journal of Differential Equations
%D 2010
%V 2010
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a18/
%G en
%F EJDE_2010__2010__a18