1. Brown, M. H., & Najork, M. A. (1997). Collaborative active textbooks. Journal of Visual Languages and Computing, 8(4), 453–486.
2. Brusilovsky, P. (1992). Intelligent tutor, environment and manual for introductory programming. Educational and Training Technology International, 29(1), 26–34.
3. Brusilovsky, P. (1995). Adaptive learning with WWW: The Moscow State University Project. In: P. Held and W. F. Kugemann (eds.) Proceedings of Telematics for Education and Training Conference, Amsterdam, 24-26 November 1994, IOS, pp. 252–255.
4. Brusilovsky, P. (2004). KnowledgeTree: a distributed architecture for adaptive e-learning. In: Proceedings of 13th International World Wide Web Conference, WWW 2004, New York, NY, 17–22 May, 2004, ACM Press, pp. 104–113.
5. Brusilovsky, P. and Anderson, J. (1998). ACT-R electronic bookshelf: An adaptive system for learning cognitive psychology on the Web. In: H. Maurer and R. G. Olson (eds.) Proceedings of WebNet’98, World Conference of the WWW, Internet, and Intranet, Orlando, FL, November 7–12, 1998, AACE, pp. 92–97.