@InProceedings{ikeda-okumura-muraki:1998:ACLCOLING,
  author    = {Takahiro Ikeda  and  Akitoshi Okumura  and  Kazunori Muraki},
  title     = {Information Classification and Navigation based on 5W1H of the Target Information},
  booktitle = {Proceedings of the 36th Annual Meeting of the Association for Computational Linguistics and 17th International Conference on Computational Linguistics, Volume 1},
  month     = {August},
  year      = {1998},
  address   = {Montreal, Quebec, Canada},
  publisher = {Association for Computational Linguistics},
  pages     = {571--577},
  url       = {http://www.aclweb.org/anthology/P98-1093},
  doi       = {10.3115/980845.980940}
}