@article{RLIN_2000_9_11_4_a0,
     author = {Berti, Massimiliano and Bolle, Philippe},
     title = {Diffusion time and splitting of separatrices for nearly integrable isochronous {Hamiltonian} systems},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {235--243},
     publisher = {mathdoc},
     volume = {Ser. 9, 11},
     number = {4},
     year = {2000},
     zbl = {1009.37044},
     mrnumber = {1614571},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_2000_9_11_4_a0/}
}