%0 Journal Article
%A Fei, Guihua
%T On periodic solutions of superquadratic Hamiltonian systems
%J Electronic Journal of Differential Equations
%D 2002
%V 2002
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a90/
%G en
%F EJDE_2002__2002__a90