Toru Nakanishi, Nobuaki Haruna, Yuji Sugiyama. Unlinkable Electronic Coupon Protocol with Anonymity Control. In Masahiro Mambo, Yuliang Zheng, editors, Information Security, Second International Workshop, ISW 99, Kuala Lumpur, Malaysia, November 1999, Proceedings. Volume 1729 of Lecture Notes in Computer Science, pages 37-46, Springer, 1999. [doi]
Abstract is missing.