@InProceedings{liu-bordes-grandvalet:2013:BioNLPST,
  author    = {Liu, Xiao  and  Bordes, Antoine  and  Grandvalet, Yves},
  title     = {Biomedical Event Extraction by Multi-class Classification of Pairs of Text Entities},
  booktitle = {Proceedings of the BioNLP Shared Task 2013 Workshop},
  month     = {August},
  year      = {2013},
  address   = {Sofia, Bulgaria},
  publisher = {Association for Computational Linguistics},
  pages     = {45--49},
  url       = {http://www.aclweb.org/anthology/W13-2006}
}