@inproceedings{mcdonald-etal-2012-free,
    title = "Free-text input vs menu selection: exploring the difference with a tutorial dialogue system.",
    author = "Mcdonald, Jenny  and
      Knott, Alistair  and
      Zeng, Richard",
    editor = "Cook, Paul  and
      Nowson, Scott",
    booktitle = "Proceedings of the Australasian Language Technology Association Workshop 2012",
    month = dec,
    year = "2012",
    address = "Dunedin, New Zealand",
    url = "https://preview.aclanthology.org/fix-sig-urls/U12-1013/",
    pages = "97--105"
}