@inproceedings{petrick-1981-field,
    title = "Field Testing the {T}ransformational {Q}uestion {A}nswering ({TQA}) System",
    author = "Petrick, S. R.",
    booktitle = "19th Annual Meeting of the Association for Computational Linguistics",
    month = jun,
    year = "1981",
    address = "Stanford, California, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P81-1009/",
    doi = "10.3115/981923.981934",
    pages = "35--36"
}