@inproceedings{ICEIS-2002-MatsuuraI,
	author        = "Kanta Matsuura and Hideki Imai",
	booktitle     = "{Proceedings of the Fourth International Conference on Enterprise Information Systems}",
	pages         = "962--967",
	title         = "{Digital Timestamps for Dispute Settlement in Electronic Commerce: Generation, Verification, and Renewal}",
	year          = 2002,
}