%0 Journal Article %A Zhang, Liang %A Tang, X. H. %T Periodic solutions for some nonautonomous $p(t)$-Laplacian Hamiltonian systems %J Applications of Mathematics %D 2013 %P 39-61 %V 58 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10492-013-0002-x/ %R 10.1007/s10492-013-0002-x %G en %F 10_1007_s10492_013_0002_x