References

[DeB99]De Bra, P. "Design Issues in Adaptive Web-Site Development," 2nd Workshop on Adaptive Systems and User Modeling on the WWW, 1999

[FR01]Ferber, R. "Cuber", 2001, URL: http://www.cuber.net

[HN99]Henze, N., Nejdl, W. "Adaptivity in the KBS Hyperbook System," 2nd Workshop on Adaptive Systems and User Modeling on the WWW, 1999

[KB01]Kramer, B.J., "Web-Based Learning Environments: Tools and Engineering Issues," Handbook of Software Engineering and Knowledge Engineering, World Scientific Publishing Co., 2001.

[MB01]"MULTIBOOK", 2001, URL: http://www.multibook.de/English/english.html