@InProceedings{ji-grishman:2008:ACLMain,
  author    = {Ji, Heng  and  Grishman, Ralph},
  title     = {Refining Event Extraction through Cross-Document Inference},
  booktitle = {Proceedings of ACL-08: HLT},
  month     = {June},
  year      = {2008},
  address   = {Columbus, Ohio},
  publisher = {Association for Computational Linguistics},
  pages     = {254--262},
  url       = {http://www.aclweb.org/anthology/P/P08/P08-1030}
}