@InProceedings{sarafraz-EtAl:2009:BioNLP-ST,
  author    = {Sarafraz, Farzaneh  and  Eales, James  and  Mohammadi, Reza  and  Dickerson, Jonathan  and  Robertson, David  and  Nenadic, Goran},
  title     = {Biomedical Event Detection using Rules, Conditional Random Fields and Parse Tree Distances},
  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     = {115--118},
  url       = {http://www.aclweb.org/anthology/W09-1417}
}