@inproceedings{dawar-vijay-shanker-1989-three,
    title = "A Three-Valued Interpretation of Negation in Feature Structure Descriptions",
    author = "Dawar, Anuj  and
      Vijay-Shanker, K.",
    booktitle = "27th Annual Meeting of the Association for Computational Linguistics",
    month = jun,
    year = "1989",
    address = "Vancouver, British Columbia, Canada",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P89-1003/",
    doi = "10.3115/981623.981626",
    pages = "18--24"
}