@Book{BioNLP-ST:2009,
  editor    = {Jun'ichi Tsujii},
  title     = {Proceedings of the BioNLP 2009 Workshop Companion Volume for Shared Task},
  month     = {June},
  year      = {2009},
  address   = {Boulder, Colorado},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W09-14}
}