@inproceedings{nivre-2006-constraints,
    title = "Constraints on Non-Projective Dependency Parsing",
    author = "Nivre, Joakim",
    editor = "McCarthy, Diana  and
      Wintner, Shuly",
    booktitle = "11th Conference of the {E}uropean Chapter of the Association for Computational Linguistics",
    month = apr,
    year = "2006",
    address = "Trento, Italy",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/E06-1010/",
    pages = "73--80"
}