9Brusilovsky P. Adaptive hypermedia: An attempt to analyze and generalize [ A]. In Brusilovsky P, Kommers P & Streitz N ( eds. ). Multimedia, Hypermedia, and Virtual Reality [ C ]. Berlin: Springer-Verlag, 1996.
10Brusilovsky P. Adaptive and intelligent technologies for web-based education [ J ]. In Rollinger C & Peyb C (eds.). Special Issue on Intelligent Systems and Teleteaching, 1999, (4) : 19 -25.
