@article{EJDE_1999__1999__a119,
     author = {Toni, B.},
     title = {Higher order branching of periodic orbits from polynomial isochrones},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {1999},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a119/}
}