@InProceedings{bjorne-EtAl:2009:BioNLP-ST,
  author    = {Bj\"{o}rne, Jari  and  Heimonen, Juho  and  Ginter, Filip  and  Airola, Antti  and  Pahikkala, Tapio  and  Salakoski, Tapio},
  title     = {Extracting Complex Biological Events with Rich Graph-Based Feature Sets},
  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     = {10--18},
  url       = {http://www.aclweb.org/anthology/W09-1402}
}