- CSCL, page 685-686. International Society of the Learning Sciences, (2002)
- Presence 11(1):55-67 (2002)
- IJGCMS 1(2):17-31 (2009)
- Hypertext, page 317-322. ACM, (2009)
- HT '09: Proceedings of the Twentieth ACM Conference on Hypertext and Hypermedia, New York, NY, USA, ACM, (July 2009)
- Cognitive Psychology (1973)
- Journal of Neuroscience 25(4):962-970 (2005)
- Journal of Neuroscience (2000)
- Journal of Neuroscience (2001)
- Cognitive Psychology (1973)
- J. Network and Computer Applications 25(4):295-308 (2002)
- WebNet, AACE, (1996)
- WebNet, AACE, (1997)
- Computers & Graphics 17(1):85-88 (1993)
- WETICE, page 21-26. IEEE Computer Society, (2000)
- WETICE, page 291-298. IEEE Computer Society, (2001)


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