@InProceedings{devault-EtAl:2005:PosterDemo,
  author    = {DeVault, David  and  Kariaeva, Natalia  and  Kothari, Anubha  and  Oved, Iris  and  Stone, Matthew},
  title     = {An Information-State Approach to Collaborative Reference},
  booktitle = {Proceedings of the ACL Interactive Poster and Demonstration Sessions},
  month     = {June},
  year      = {2005},
  address   = {Ann Arbor, Michigan},
  publisher = {Association for Computational Linguistics},
  pages     = {1--4},
  url       = {http://www.aclweb.org/anthology/P/P05/P05-3001}
}