@inproceedings{pieraccini-etal-1991-stochastic,
    title = "Stochastic Representation of Conceptual Structure in the {ATIS} Task",
    author = "Pieraccini, Roberto  and
      Levin, Esther  and
      Lee, Chin-Hui",
    booktitle = "Speech and Natural Language: Proceedings of a Workshop Held at Pacific Grove, California, {F}ebruary 19-22, 1991",
    year = "1991",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/H91-1020/"
}