@inproceedings{CTT100597511,
  author = {Kenji Masui and Shinya Nakamura and Masashi Eto and Youki Kadobayashi},
  title = {Policy-Based Email System for Controlling Secondary Use of Information},
  booktitle = {Proceedings of the First International Workshop on Security (IWSEC2006)},
  year = 2006,
}