@InProceedings{hixon-passonneau-epstein:2012:SIGDIAL2012,
  author    = {Hixon, Ben  and  Passonneau, Rebecca J.  and  Epstein, Susan L.},
  title     = {Semantic Specificity in Spoken Dialogue Requests},
  booktitle = {Proceedings of the 13th Annual Meeting of the Special Interest Group on Discourse and Dialogue},
  month     = {July},
  year      = {2012},
  address   = {Seoul, South Korea},
  publisher = {Association for Computational Linguistics},
  pages     = {257--260},
  url       = {http://www.aclweb.org/anthology/W12-1635}
}