T. Hartmann, S. Volz, M. Babilon, P. Mohr, K. Vogt, and A. Zilges. Nuclear Physics A, (May 2003)17th International Nuclear Physics Divisional Conference of the
European-Physical-Society, DEBRECEN, HUNGARY, SEP 30-OCT 04, 2002.
D. Oberle, M. Sabou, D. Richards, and R. Volz. On The Move to Meaningful Internet Systems 2003: ØTM\ 2003 Workshops, ØTM\ Confederated International Workshops, HCI-SWWA, IPW, JTRES, WORM, WMS, and \WRSM\ 2003, Catania, Sicily, Italy, November 3-7, 2003, Proceedings, volume 2889 of Lecture Notes in Computer Science, page 28--29. Springer, (2003)