- Collaborative workspace of the WebLabs project. Learn math and science by constructing and sharing.
- The 6th IEEE International Conference on Wireless, Mobile, and Ubiquitous Technologies in Education, page 137--141. IEEE, (2010)
- ZDM (2010)
- Proceedings of the European Conference on Game Based Learning, Barcelona, page 507--516. (2008)
- Mlearn2010 - 9th world conference on mobile and contextual learning, page 9-16. (October 2010)
- International Conference on Cognition and Exploratory Learning in Digital Age, (2007)
- Australasian Journal of Educational Technology 26(1):85-104 (2010)
- proceedings of the 1st CSCL SIG Symposium, Lausanne, Switzerland, (2004)
- the International Journal for Technology in Mathematics Education 13(2):65-78 (2006)
- International Journal of Continuing Engineering Education and Life-Long Learning IJCEELL 18(2):214-233 (2008)
- Proceedings of the 13th European Conference on Pattern Languages of Programs EuroPLoP 2008, page 348-384. CEUR-WS, (2010)
- Educational Technology & Society 13(3):224–232 (2010)
- Lawrence Erlbaum Associates, Mahwah, NJ, (1996)
- Journal for Research in Mathematics Education 18(2):83-97 (1987)
- (2006)
- presented at the International Symposium on Organizational Learning and Knowledge Work Management OL-KWM 2005, page 88-99. Bucharest, Romania, (2005)
- presented at the international conference on AI in Education AI-Ed 2005, Amsterdam, Netherlands, (2005)
- (2006)


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