Non-repudiation of Forwarding - Traceability of Confidential Data Via Multiple Recipients. - Rainer Schick; Christoph Ruland (SECRYPT, 2012)

On the Security of the Non-Repudiation of Forwarding Service. - Rainer Schick; Christoph Ruland (TrustBus, 2012)

Nichtabstreitbarkeit der Weitergabe von Dokumenten. - Rainer Schick (Shaker, 2013)