TY - CONF A1 - Binemann-Zdanowicz, Aleksander A1 - Thalheim, Bernhard A1 - Tschiedel, Bernd T1 - Content Modeling for E-Learning Services T2 - Proceedings, World Multiconference on Systemics,Cybernetics and Informatics, SCI 2003, Vol. XII, part II, Orlando, Florida, USA KW - E-Learning Y1 - 2004 UR - https://opus4.kobv.de/opus4-UBICO/frontdoor/index/index/docId/1788 SP - 61 EP - 66 PB - Internat. Inst. of Informatics and Systemics CY - Orlando, Fla. ER -