@inproceedings{sanchis-etal-2007-estimation,
    title = "Estimation of confidence measures for machine translation",
    author = "Sanchis, Alberto  and
      Juan, Alfons  and
      Vidal, Enrique",
    editor = "Maegaard, Bente",
    booktitle = "Proceedings of Machine Translation Summit XI: Papers",
    month = sep # " 10-14",
    year = "2007",
    address = "Copenhagen, Denmark",
    url = "https://aclanthology.org/2007.mtsummit-papers.54/"
}