@inproceedings{boyer-etal-2009-inferring,
    title = "Inferring Tutorial Dialogue Structure with Hidden {M}arkov Modeling",
    author = "Boyer, Kristy Elizabeth  and
      Ha, Eun Young  and
      Phillips, Robert  and
      Wallis, Michael  and
      Vouk, Mladen  and
      Lester, James",
    editor = "Tetreault, Joel  and
      Burstein, Jill  and
      Leacock, Claudia",
    booktitle = "Proceedings of the Fourth Workshop on Innovative Use of {NLP} for Building Educational Applications",
    month = jun,
    year = "2009",
    address = "Boulder, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/W09-2103/",
    pages = "19--26"
}