@InProceedings{parada-EtAl:2011:ACL-HLT2011,
  author    = {Parada, Carolina  and  Dredze, Mark  and  Sethy, Abhinav  and  Rastrow, Ariya},
  title     = {Learning Sub-Word Units for Open Vocabulary Speech Recognition},
  booktitle = {Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies},
  month     = {June},
  year      = {2011},
  address   = {Portland, Oregon, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {712--721},
  url       = {http://www.aclweb.org/anthology/P11-1072}
}