@inproceedings{Den94,
  author	= {Den, Yasaharu},
  year		= {1994},
  title		= {Generalized chart algorithm: an efficient procedure for cost-based abduction},
  booktitle	= {32nd. Annual Meeting of the Association for Computational Linguistics},
  pages		= {218--225},
  address	= {New Mexico State University, Las Cruces, New Mexico}
}