1. How to date blind signatures;Abe,1996
2. Pairing implementation for smart-cards;Bertoni;Journal of Systems and Software,2008
3. Untraceable off-line cash in wallets with observers;Brands,1993
4. An efficient fair payment system protecting privacy;Camenisch,1994
5. Blind signatures based on the discrete logarithm problem;Camenisch,1995