@inproceedings{petrov-klein-2007-improved,
    title = "Improved Inference for Unlexicalized Parsing",
    author = "Petrov, Slav  and
      Klein, Dan",
    editor = "Sidner, Candace  and
      Schultz, Tanja  and
      Stone, Matthew  and
      Zhai, ChengXiang",
    booktitle = "Human Language Technologies 2007: The Conference of the North {A}merican Chapter of the Association for Computational Linguistics; Proceedings of the Main Conference",
    month = apr,
    year = "2007",
    address = "Rochester, New York",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/iwcs-25-ingestion/N07-1051/",
    pages = "404--411"
}