@inproceedings{headden-iii-etal-2006-learning,
    title = "Learning Phrasal Categories",
    author = "Headden III, William P.  and
      Charniak, Eugene  and
      Johnson, Mark",
    editor = "Jurafsky, Dan  and
      Gaussier, Eric",
    booktitle = "Proceedings of the 2006 Conference on Empirical Methods in Natural Language Processing",
    month = jul,
    year = "2006",
    address = "Sydney, Australia",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W06-1636/",
    pages = "301--307"
}