@InProceedings{mackinlay-martinez-baldwin:2009:BioNLP-ST,
  author    = {MacKinlay, Andrew  and  Martinez, David  and  Baldwin, Timothy},
  title     = {Biomedical Event Annotation with CRFs and Precision Grammars},
  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     = {77--85},
  url       = {http://www.aclweb.org/anthology/W09-1410}
}