1. Baehring T., Weichelt U., Schmidt H., Adler M., Bruckmoser S., Fischer M.: ProMediWeb: Problem based case training in medicine via the World Wide Web. Proceedings ED-MEDIA II, Freiburg (1998).
2. Brusilovski, P.: Methods and techniques of adaptive hypermedia. User Modeling and User-Adapted Interaction 6 (1996) 87–129.
3. Carr B., Goldstein I.P.: Overlays: A Theory of Modeling for Computer-Aided Instruction. MIT Press, Cambridge, MA/London (1977).
4. Docs’N Drugs-Die virtuelle Poliklinik. http://www.docs-n-drugs.de
5. Hammond K.: Case-Based Planning. Academic Press, INC., Boston (1989).