1. Bieber, M., Jiangling, W.: Backtracking in a Multiple-window Hypertext Environment. In: Proceeding of ECHT 1994, pp. 158–166. ACM Press, New York (1994)
2. Bieber, M., Vitali, F., Ashman, H., Balasubramanian, V., Oinas-Kukkonen, H.: Fourth generation hypermedia: some missing links for the World Wide Web. Journal of Human-Computer Studies, 31–65 (1997)
3. Castelli, G., Rosi, A., Mamei, M., Zambonelli, F.: A Simple Model and Infrastructure for Context-Aware Browsing of the World. In: Proceeding of PERCOM 2007, pp. 229–238. IEEE Computer Society, Los Alamitos (2007)
4. Fortier, A., Challiol, C., Rossi, G., Gordillo, S.: Physical Hypermedia: a Context-Aware approach. In: Proceedings of the CAiSE 2007, pp. 499–513 (2007)
5. Gamma, E., Helm, R., Johnson, R., Vlissides, J.: Design Patterns. Elements of reusable object-oriented software. Addison-Wesley, Reading (1995)