@article{AIHPC_2000__17_6_673_0,
     author = {Bosetto, Elena and Serra, Enrico},
     title = {A variational approach to chaotic dynamics in periodically forced nonlinear oscillators},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {673--709},
     publisher = {Gauthier-Villars},
     volume = {17},
     number = {6},
     year = {2000},
     mrnumber = {1804651},
     zbl = {0978.37024},
     language = {en},
     url = {http://www.numdam.org/item/AIHPC_2000__17_6_673_0/}
}