@InProceedings{navarretta-paggio:2010:Short,
  author    = {Navarretta, Costanza  and  Paggio, Patrizia},
  title     = {Classification of Feedback Expressions in Multimodal Data},
  booktitle = {Proceedings of the ACL 2010 Conference Short Papers},
  month     = {July},
  year      = {2010},
  address   = {Uppsala, Sweden},
  publisher = {Association for Computational Linguistics},
  pages     = {318--324},
  url       = {http://www.aclweb.org/anthology/P10-2059}
}