1. Lect Notes Comput Sci;M. Abe,1999
2. M. Abe. Universally verifiable mix-net with verification work independent of the number of mix-servers. IEICE Transaction of Fundamentals of electronic Communications and Computer Science, E83-A(7):1431–1440, July 2000. Presented at Eurocrypt’98.
3. D. L. Chaum. Untraceable electronic mail, return address, and digital pseudonyms. Communications of the ACM, 24:84–88, 1981.
4. Lect Notes Comput Sci;D. L. Chaum,1993
5. Lect Notes Comput Sci;R. Cramer,1994