@inproceedings{rello-etal-2012-elliphant,
    title = "{E}lliphant: Improved Automatic Detection of Zero Subjects and Impersonal Constructions in {S}panish",
    author = "Rello, Luz  and
      Baeza-Yates, Ricardo  and
      Mitkov, Ruslan",
    editor = "Daelemans, Walter",
    booktitle = "Proceedings of the 13th Conference of the {E}uropean Chapter of the Association for Computational Linguistics",
    month = apr,
    year = "2012",
    address = "Avignon, France",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/E12-1072/",
    pages = "706--715"
}