Yongwu Miao, Shirley J. Holst, Torsten Holmer, Jutta Maria Fleschutz, Peter Zentel. An Activity-Oriented Approach to Visually Structured Knowledge Represenation for Problem-Based Learning in Virtual Learning Environments. In Proceedings of the 4th International Conference on Designing Cooperative Systems, COOP 2000, Sophia-Antipolis, France, May 23-26, 2000. pages 303-318, IOS Press, 2000. [doi]
Abstract is missing.