@inproceedings{kirschner-bernardi-2009-exploring,
    title = "Exploring Topic Continuation Follow-up Questions using Machine Learning",
    author = "Kirschner, Manuel  and
      Bernardi, Raffaella",
    editor = "Germann, Ulrich  and
      Shah, Chirag  and
      Stoyanchev, Svetlana  and
      Ros{\'e}, Carolyn Penstein  and
      Sarkar, Anoop",
    booktitle = "Proceedings of Human Language Technologies: The 2009 Annual Conference of the North {A}merican Chapter of the Association for Computational Linguistics, Companion Volume: Student Research Workshop and Doctoral Consortium",
    month = jun,
    year = "2009",
    address = "Boulder, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/N09-3003/",
    pages = "13--18"
}