Volker Hilt, Werner Geyer. A Model for Collaborative Services in Distributed Learning Environments. In Ralf Steinmetz, Lars C. Wolf, editors, Interactive Distributed Multimedia Systems and Telecommunication Services, 4th International Workshop, IDMS 97, Darmstadt, Germany, September 10-12, 1997, Proceedings. Volume 1309 of Lecture Notes in Computer Science, pages 364-375, Springer, 1997.
Abstract is missing.