@inproceedings{walker-whittaker-1990-mixed,
    title = "Mixed Initiative in Dialogue: An Investigation into Discourse Segmentation",
    author = "Walker, Marilyn  and
      Whittaker, Steve",
    booktitle = "28th Annual Meeting of the Association for Computational Linguistics",
    month = jun,
    year = "1990",
    address = "Pittsburgh, Pennsylvania, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P90-1010/",
    doi = "10.3115/981823.981833",
    pages = "70--78"
}