@inproceedings{weischedel-etal-1991-bbn-description,
    title = "{BBN}: Description of the {PLUM} System as Used for{MUC}-3",
    author = "Weischedel, Ralph  and
      Ayuso, Damaris  and
      Boisen, Sean  and
      Ingria, Robert  and
      Palmucci, Jeff",
    booktitle = "{T}hird {M}essage {U}nderstanding {C}onference ({MUC}-3): Proceedings of a Conference Held in {S}an {D}iego, {C}alifornia, {M}ay 21-23, 1991",
    year = "1991",
    url = "https://aclanthology.org/M91-1021/"
}