@inproceedings{keller-weir-1995-tractable,
    title = "A Tractable Extension of Linear Indexed Grammars",
    author = "Keller, Bill  and
      Weir, David",
    editor = "Abney, Steven P.  and
      Hinrichs, Erhard W.",
    booktitle = "Seventh Conference of the {E}uropean Chapter of the Association for Computational Linguistics",
    month = mar,
    year = "1995",
    address = "Dublin, Ireland",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/E95-1011/"
}