@inproceedings{heylen-op-den-akker-2007-computing,
    title = "Computing Backchannel Distributions in Multi-Party Conversations",
    author = "Heylen, Dirk  and
      op den Akker, Rieks",
    editor = "Cassell, Justine  and
      Heylen, Dirk",
    booktitle = "Proceedings of the Workshop on Embodied Language Processing",
    month = jun,
    year = "2007",
    address = "Prague, Czech Republic",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W07-1903/",
    pages = "17--24"
}