N. Pinkwart, A. Harrer, S. Lohmann, and S. Vetter. Proceedings of the 4th In-ternational Conference on Web-Based Education, page 201-206. Anaheim (CA), ACTA Press, (2005)
Y. Miao, K. Hoeksema, H. Hoppe, and A. Harrer. Proceedings of the International Conference on Computer Supported Collaborative Learning (CSCL2005), Taiwan, , (2005)
A. Harrer, S. Zeini, and N. Pinkwart. Proceedings of the International Conference on Computer Supported Collaborative Learning (CSCL2005), Taiwan, , (2005)
A. Harrer, N. Malzahn, K. Hoeksema, and H. Hoppe. Journal of Interactive Media in Education, (2005)Journal of Interactive Media in Education (Advances in Learning Design. Special Issue, eds. Colin Tattersall, Rob Koper), 2005/05. ISSN:1365-893X.
A. Harrer, B. McLaren, E. Walker, L. Bollen, and J. Sewell. Artificial Intelligence in Education - Supporting Learning through Intelligent and Socially Informed Technology, page 266-273. Amsterdam (The Netherlands), IOS Press, (2005)
M. Kuhn, M. Jansen, A. Harrer, and H. Hoppe. Proceedings of the International Conference on Computer Supported Collaborative Learning (CSCL2005), Taiwan, , (2005)
N. Malzahn, S. Zeini, and A. Harrer. Modeling and Using Context, 5th International and Interdisciplinary Conference, CONTEXT 2005, page 292 - 303. Paris, France, Springer, (2005)CONTEXT 2005, Paris, France, July 5-8, 2005.
A. Harrer, M. Vetter, S. Thür, and J. Brauckmann. Artificial Intelligence in Education - Supporting Learning through Intelligent and Socially Informed Technology, page 816-818. Amsterdam (The Netherlands), IOS Press, (2005)