@inproceedings{nakov-etal-2013-tale,
    title = "A Tale about {PRO} and Monsters",
    author = "Nakov, Preslav  and
      Guzm{\'a}n, Francisco  and
      Vogel, Stephan",
    editor = "Schuetze, Hinrich  and
      Fung, Pascale  and
      Poesio, Massimo",
    booktitle = "Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)",
    month = aug,
    year = "2013",
    address = "Sofia, Bulgaria",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P13-2003/",
    pages = "12--17"
}