@inproceedings{agirre-etal-2011-improving,
    title = "Improving Dependency Parsing with Semantic Classes",
    author = "Agirre, Eneko  and
      Bengoetxea, Kepa  and
      Gojenola, Koldo  and
      Nivre, Joakim",
    editor = "Lin, Dekang  and
      Matsumoto, Yuji  and
      Mihalcea, Rada",
    booktitle = "Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies",
    month = jun,
    year = "2011",
    address = "Portland, Oregon, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest_wac_2008/P11-2123/",
    pages = "699--703"
}