@inproceedings{olney-etal-2011-generating,
    title = "Generating Concept Map Exercises from Textbooks",
    author = "Olney, Andrew  and
      Cade, Whitney  and
      Williams, Claire",
    editor = "Tetreault, Joel  and
      Burstein, Jill  and
      Leacock, Claudia",
    booktitle = "Proceedings of the Sixth Workshop on Innovative Use of {NLP} for Building Educational Applications",
    month = jun,
    year = "2011",
    address = "Portland, Oregon",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W11-1414/",
    pages = "111--119"
}