@inproceedings{austin-etal-1991-bbn,
    title = "{BBN} {HARC} and {DELPHI} Results on the {ATIS} Benchmarks - {F}ebruary 1991",
    author = "Austin, S.  and
      Ayuso, D.  and
      Bates, M.  and
      Bobrow, R.  and
      Ingria, R.  and
      Makhoul, J.  and
      Placeway, P.  and
      Schwartz, R.  and
      Stallard, D.",
    booktitle = "Speech and Natural Language: Proceedings of a Workshop Held at Pacific Grove, California, {F}ebruary 19-22, 1991",
    year = "1991",
    url = "https://aclanthology.org/H91-1018/"
}