@InProceedings{kim-EtAl:2009:BioNLP-ST,
  author    = {Kim, Jin-Dong  and  Ohta, Tomoko  and  Pyysalo, Sampo  and  Kano, Yoshinobu  and  Tsujii, Jun'ichi},
  title     = {Overview of BioNLP'09 Shared Task on Event Extraction},
  booktitle = {Proceedings of the BioNLP 2009 Workshop Companion Volume for Shared Task},
  month     = {June},
  year      = {2009},
  address   = {Boulder, Colorado},
  publisher = {Association for Computational Linguistics},
  pages     = {1--9},
  url       = {http://www.aclweb.org/anthology/W09-1401}
}