@inproceedings{boisen-etal-1989-bbn,
    title = "The {BBN} Spoken Language System",
    author = "Boisen, Sean  and
      Chow, Yen-Lu  and
      Haas, Andrew  and
      Ingria, Robert  and
      Roukos, Salim  and
      Stallard, David",
    booktitle = "Speech and Natural Language: Proceedings of a Workshop Held at Philadelphia, {P}ennsylvania, {F}ebruary 21-23, 1989",
    year = "1989",
    url = "https://preview.aclanthology.org/fix-sig-urls/H89-1012/"
}