@InProceedings{zhou-EtAl:2005:ACL,
  author    = {Zhou, GuoDong  and  Su, Jian  and  Zhang, Jie  and  Zhang, Min},
  title     = {Exploring Various Knowledge in Relation Extraction},
  booktitle = {Proceedings of the 43rd Annual Meeting of the Association for Computational Linguistics (ACL'05)},
  month     = {June},
  year      = {2005},
  address   = {Ann Arbor, Michigan},
  publisher = {Association for Computational Linguistics},
  pages     = {427--434},
  url       = {http://www.aclweb.org/anthology/P/P05/P05-1053}
}