1. Barak, B.: Delegatable signatures. Technical report, Weizmann Institute of Science (2001)
2. Lecture Notes in Computer Science;D. Boneh,2004
3. Lecture Notes in Computer Science;D. Boneh,2005
4. Belenkiy, M., Camenisch, J., Chase, M., Kohlweiss, M., Lysyanskaya, A., Shacham, H.: Randomizable proofs and delegatable anonymous credentials. Cryptology ePrint Archive, Report 2008/428 (2008), http://eprint.iacr.org/2008/428
5. Lecture Notes in Computer Science;M. Belenkiy,2008