@inproceedings{leacock-etal-2009-user,
    title = "User Input and Interactions on {M}icrosoft {R}esearch {ESL} Assistant",
    author = "Leacock, Claudia  and
      Gamon, Michael  and
      Brockett, Chris",
    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/fix-sig-urls/W09-2111/",
    pages = "73--81"
}