@article{EJDE_2012__2012__a99,
     author = {Llibre, Jaume and Stoica, Cristina and Valls, Claudia},
     title = {Polynomial and rational integrability of polynomial {Hamiltonian} systems},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2012},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a99/}
}