@InProceedings{zhou-su:2002:ACL,
  author    = {GuoDong Zhou  and  Jian Su},
  title     = {Named Entity Recognition using an HMM-based Chunk Tagger},
  booktitle = {Proceedings of 40th Annual Meeting of the Association for Computational Linguistics},
  month     = {July},
  year      = {2002},
  address   = {Philadelphia, Pennsylvania, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {473--480},
  url       = {http://www.aclweb.org/anthology/P02-1060},
  doi       = {10.3115/1073083.1073163}
}