J. Schumacher. 1st German Workshop on Experience Management: Sharing Experiences About the Sharing of Experience, Berlin, March 7-8, 2002, Proceedings, Seite 61--62. Gesellschaft für Informatik GI, (2002)
J. Schumacher, und R. Bergmann. Proceedings of the 8th German Workshop on Case-Based Reasoning, GWCBR 2000, Lämmerbuckel, Germany, Seite 75--86. Ulm, Germany, DaimlerChrysler, Research and Technology, FT3/KL, (2000)