@article{RSM_1999__57_3_125130,
     author = {Ciriza, Eleonora},
     title = {Bifurcation of periodic orbits of time dependent {Hamiltonian} systems on symplectic manifolds.},
     journal = {Rendiconti del seminario matematico},
     pages = {161--173},
     publisher = {mathdoc},
     volume = {57},
     number = {3},
     year = {1999},
     zbl = {1072.37040},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RSM_1999__57_3_125130/}
}