@proceedings{ws-2013-sigdial,
    title = "Proceedings of the {SIGDIAL} 2013 Conference",
    editor = "Eskenazi, Maxine  and
      Strube, Michael  and
      Di Eugenio, Barbara  and
      Williams, Jason D.",
    month = aug,
    year = "2013",
    address = "Metz, France",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W13-4000/"
}