@inproceedings{novick-sutton-1994-empirical,
    title = "An Empirical Model of Acknowledgment for Spoken-Language Systems",
    author = "Novick, David G.  and
      Sutton, Stephen",
    booktitle = "32nd Annual Meeting of the Association for Computational Linguistics",
    month = jun,
    year = "1994",
    address = "Las Cruces, New Mexico, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/P94-1014/",
    doi = "10.3115/981732.981746",
    pages = "96--101"
}