%0 Journal Article
%A Guan, Wen
%A Wang, Da-Bin
%T Existence of infinitely many periodic solutions for second-order nonautonomous Hamiltonian systems
%J Electronic Journal of Differential Equations
%D 2015
%V 2015
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2015__2015__a75/
%G en
%F EJDE_2015__2015__a75