@InProceedings{cassell-EtAl:2001:ACL,
  author    = {Justine Cassell  and  Yukiko Nakano  and  Timothy W. Bickmore  and  Candace L. Sidner  and  Charles Rich},
  title     = {Non-Verbal Cues for Discourse Structure},
  booktitle = {Proceedings of 39th Annual Meeting of the Association for Computational Linguistics},
  month     = {July},
  year      = {2001},
  address   = {Toulouse, France},
  publisher = {Association for Computational Linguistics},
  pages     = {114--123},
  url       = {http://www.aclweb.org/anthology/P01-1016},
  doi       = {10.3115/1073012.1073028}
}