@inproceedings{Nakano:2003:ACL,
  author = {Nakano, Yukiko  and  Reinstein, Gabe  and  Stocky, Tom  and  Cassell, Justine},
  title  = {Towards a Model of Face-to-Face Grounding},
  booktitle = {Proceedings of the 41st Annual Meeting of the Association for Computational Linguistics},
  editor = {Erhard Hinrichs and Dan Roth},
  url    = {http://www.aclweb.org/anthology/P03-1070.pdf},
  year   = 2003,
  pages  = {553--561}
}