K. Bergner, A. Rausch, M. Sihling, and C. Vilsmeier. SCI 99, Proceedings of the World Multiconference on SYSTEMS, CYBERNETICS AND INFORMATICS, page 590 - 594. IEEE Computer Society, (July 1999)
K. Bergner, A. Rausch, M. Sihling, and A. Vilbig. HICSS 33, Proceedings of the Thirty-Third Annual Hawaii International Conference on System Sciences, IEEE Computer Society, (January 2000)