%0 Journal Article
%A Alwash, Mohamad Ali M.
%T Complex centers of polynomial differential equations
%J Electronic Journal of Differential Equations
%D 2007
%V 2007
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a133/
%G en
%F EJDE_2007__2007__a133