1. Anders, P. (1998) Envisioning Cyberspace: Designing 3-D Electronic Spaces, McGraw-Hill Professional Publishing.
2. Lect Notes Comput Sci;P. Besselaar van den,2000
3. Börner, K. (2001a) Using Active Worlds Technology to build an iUniverse of 3-D collaborative learning environments. IEEE Learning Technology newsletter. January.
4. Börner, K. (2001b) iScape: A collaborative memory palace for digital library search results. Proceedings of the International Conference on Human-Computer Interaction, New Orleans, LA, August 5–10, M. J. Smith, G. Salvendy, D. Harris, R. J. Koubek (Eds) Usability Evaluation and Interface Design, Volume 1, Lawrence Erlbaum Associates, London, pp. 1160–1164, 2001.
5. Börner, K. & Chen, C. (2001) Visual Interfaces to Digital Libraries — Its Past, Present, and Future. Proceedings of the First ACM+IEEE Joint Conference on Digital Libraries, Roanoke, VA, USA, p. 482, 2001.