1. Some Applications of Multiple Key Ciphers;Boyd,1988
2. A New Multiple Key Cipher and an Improved Voting Scheme;Boyd,1989
3. A Secure Voting System on a Public Network;Chang,1994
4. Untraceable Electronic Mail, Return Addresses and Digital Pseudonyms;Chaum;Communications of the ACM,1981
5. Elections with Unconditionally-Secret Ballots and Disrupt Equivalent to Breaking RSA;Chaum,1988