@inproceedings{Itoh:2003:PATENT,
  author = {Itoh, Hideo  and  Mano, Hiroko  and  Ogawa, Yasushi},
  title  = {Term Distillation in Patent Retrieval},
  booktitle = {Proceedings of the ACL-2003 Workshop on Patent Corpus Processing},
  editor = {Makoto Iwayama and Atsushi Fujii},
  url    = {http://www.aclweb.org/anthology/W03-2005.pdf},
  year   = 2003,
  pages  = {41--45}
}