@InProceedings{bethard-EtAl:2015:SemEval,
  author    = {Bethard, Steven  and  Derczynski, Leon  and  Savova, Guergana  and  Pustejovsky, James  and  Verhagen, Marc},
  title     = {SemEval-2015 Task 6: Clinical TempEval},
  booktitle = {Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015)},
  month     = {June},
  year      = {2015},
  address   = {Denver, Colorado},
  publisher = {Association for Computational Linguistics},
  pages     = {806--814},
  url       = {http://www.aclweb.org/anthology/S15-2136}
}