@article{ZNSL_2003_300_a12,
     author = {L. Galgani and A. Giorgilli},
     title = {Recent results on the {Fermi--Pasta--Ulam} problem},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {145--154},
     publisher = {mathdoc},
     volume = {300},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2003_300_a12/}
}