@inproceedings{hasegawa-sekine-grishman:2004:ACL,
  author    = {Hasegawa, Takaaki  and  Sekine, Satoshi  and  Grishman, Ralph},
  title     = {Discovering Relations among Named Entities from Large Corpora},
  booktitle = {Proceedings of the 42nd Meeting of the Association for Computational Linguistics (ACL'04), Main Volume},
  year      = 2004,
  month     = {July},
  address   = {Barcelona, Spain},
  pages     = {415--422},
  url       = {http://www.aclweb.org/anthology/P04-1053},
  doi       = {10.3115/1218955.1219008}
}