%0 Journal Article %A Llibre, Jaume %A Stoica, Cristina %A Valls, Claudia %T Polynomial and rational integrability of polynomial Hamiltonian systems %J Electronic Journal of Differential Equations %D 2012 %V 2012 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a99/ %G en %F EJDE_2012__2012__a99