@ARTICLE\{IMM2002-01645,
    author       = "M. Salerno and Y. Zolotaryuk",
    title        = "Soliton ratchetlike dynamics by ac forces with harmonic mixing",
    year         = "2002",
    pages        = "1-10/056603",
    journal      = "Physical Review E",
    volume       = "65",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1645-full.html"
}