David Chaum, Eugène van Heijst, Birgit Pfitzmann. Cryptographically Strong Undeniable Signatures, Unconditionally Secure for the Signer. In Joan Feigenbaum, editor, Advances in Cryptology - CRYPTO 91, 11th Annual International Cryptology Conference, Santa Barbara, California, USA, August 11-15, 1991, Proceedings. Volume 576 of Lecture Notes in Computer Science, pages 470-484, Springer, 1991. [doi]
Abstract is missing.