Context Based Educational Content Management Engelhardt, Michael Hildebrand, Arne Karpati, Andreas Rack, Torsten Schmidt, Thomas C. 2003 - ReposIt
A Virtual Knowledge Marketplace Engelhardt, Michael Karpati, Andreas Rack, Torsten Schmidt, Thomas C. 2001 - ReposIt
A Virtual Knowledge Marketplace Engelhardt, Michael Karpati, Andreas Rack, Torsten Schmidt, Thomas C. 2001 - ReposIt