Agent Technologies, Infrastructures, Tools, and Applications for E-Services : NODe 2002 Agent-Related Workshop, Erfurt, Germany, October 7-10, 2002, Revised Papers - Jaime G. Carbonell, Jörg Siekmann, Ryszard Kowalczyk, Jörg P. Müller, Huaglory Tianfield, Rainer Unland ((Lecture Notes in Computer Science))