TY - CONF A1 - Binemann-Zdanowicz, Aleksander A1 - Thalheim, Bernhard A1 - Tschiedel, Bernd T1 - Logistics for Learning Objects KW - learning objects Y1 - 2004 UR - https://opus4.kobv.de/opus4-UBICO/frontdoor/index/index/docId/1787 ER -