@article{EJDE_2001__2001__a79,
     author = {Boughariou, Morched},
     title = {Periodic solutions for a class of non-coercive {Hamiltonian} systems},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2001},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a79/}
}