@Book{BioNLP:2009,
  editor    = {K. Bretonnel Cohen  and  Dina Demner-Fushman  and  Sophia Ananiadou  and  John Pestian  and  Jun'ichi Tsujii  and  Bonnie Webber},
  title     = {Proceedings of the BioNLP 2009 Workshop},
  month     = {June},
  year      = {2009},
  address   = {Boulder, Colorado},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W/W09/W09-13}
}