Springer
doi.org/10.1007/s00145-013-9145-x
Journal of Cryptology
Cryptology

Cramer, R., Damgård, I., & Keller, M. (2014). On the Amortized Complexity of Zero-Knowledge Protocols. Journal of Cryptology, 27(2), 285–316. doi:10.1007/s00145-013-9145-x