@inproceedings{bates-etal-1994-delphi,
    title = "The Delphi Natural Language Understanding System",
    author = "Bates, Madeleine  and
      Bobrow, Robert  and
      Ingria, Robert  and
      Stallard, David",
    booktitle = "Fourth Conference on Applied Natural Language Processing",
    month = oct,
    year = "1994",
    address = "Stuttgart, Germany",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest_wac_2008/A94-1022/",
    doi = "10.3115/974358.974388",
    pages = "132--137"
}