@inproceedings{wilensky-arens-1980-phran,
    title = "{PHRAN} - A Knowledge-Based Natural Language Understander",
    author = "Wilensky, Robert  and
      Arens, Yigal",
    booktitle = "18th Annual Meeting of the Association for Computational Linguistics",
    month = jun,
    year = "1980",
    address = "Philadelphia, Pennsylvania, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P80-1030/",
    doi = "10.3115/981436.981471",
    pages = "117--121"
}