@inproceedings{lindberg-etal-2013-generating,
    title = "Generating Natural Language Questions to Support Learning On-Line",
    author = "Lindberg, David  and
      Popowich, Fred  and
      Nesbit, John  and
      Winne, Phil",
    editor = "Gatt, Albert  and
      Saggion, Horacio",
    booktitle = "Proceedings of the 14th {E}uropean Workshop on Natural Language Generation",
    month = aug,
    year = "2013",
    address = "Sofia, Bulgaria",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W13-2114/",
    pages = "105--114"
}