Donald Beaver, Joan Feigenbaum, Victor Shoup. Hiding Instances in Zero-Knowledge Proof Systems (Extended Abstract). In Alfred Menezes, Scott A. Vanstone, editors, Advances in Cryptology - CRYPTO 90, 10th Annual International Cryptology Conference, Santa Barbara, California, USA, August 11-15, 1990, Proceedings. Volume 537 of Lecture Notes in Computer Science, pages 326-338, Springer, 1990. [doi]
Abstract is missing.