@inproceedings{schmitz-le-roux-2008-feature,
    title = "Feature Unification in {TAG} Derivation Trees",
    author = "Schmitz, Sylvain  and
      Le Roux, Joseph",
    editor = "Gardent, Claire  and
      Sarkar, Anoop",
    booktitle = "Proceedings of the Ninth International Workshop on Tree Adjoining Grammar and Related Frameworks ({TAG}+9)",
    month = jun,
    year = "2008",
    address = {T{\"u}bingen, Germany},
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/W08-2319/",
    pages = "141--148"
}