@inproceedings{vadas-curran-2007-adding,
    title = "Adding Noun Phrase Structure to the {P}enn {T}reebank",
    author = "Vadas, David  and
      Curran, James",
    editor = "Zaenen, Annie  and
      van den Bosch, Antal",
    booktitle = "Proceedings of the 45th Annual Meeting of the Association of Computational Linguistics",
    month = jun,
    year = "2007",
    address = "Prague, Czech Republic",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P07-1031/",
    pages = "240--247"
}