Advances in Cryptology – EUROCRYPT 2001 International Conference on the Theory and Application of Cryptographic Techniques Innsbruck, Austria, May 6–10, 2001, Proceedings Pfitzmann Birgit Heftet / 2001 / Engelsk
Digital Signature Schemes General Framework and Fail-Stop Signatures Pfitzmann Birgit Heftet / 1996 / Engelsk
