Stefan Schulz and Klaus Herrmann and Robert Kalcklösch and Thomas Schwotzer (2003). Towards Trust-based Knowledge Management in Mobile Communities. Agent-Mediated Knowledge Management. Papers from 2003 AAAI Spring Symposium. Technical Report SS-03-01. AAAI Press.
Robert Kalcklösch and Klaus Herrmann (2003). Statistical Trustability (Conceptual Work). First International Conference on Trust Management (iTrust 2003). Springer, 271–274.
Andreas Tanner and Gero Mühl (2003). A Combinatorial Exchange for Autonomous Traders. Proceedings of the 4th International Conference on Electronic Commerce and Web Technologies. Springer Verlag, 26–36.