%0 Journal Article
%A Yiming Long
%T Periodic Solutions of Superquadratic Hamiltonian Systems with Bounded Forcing Terms.
%J Mathematische Zeitschrift
%D 1990
%P 453-468
%V 203
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1990__203_3_174140/
%F MZ_1990__203_3_174140