A. Harrer, S. Ziebarth, A. Giemza, and H. Hoppe. The 8th IEEE International Conference on Advanced Learning Technologies, page 41-45. Santander, Spain, IEEE Computer Society Press, (2008)
A. Harrer, R. Hever, and S. Ziebarth. Artificial Intelligence in Education - Building Technology Rich Learning Contexts that Work, 158, page 503-510. Amsterdam, IOS Press, (2007)
S. Ziebarth, N. Malzahn, and H. Hoppe. Proceedings of the 14th International Conference on Artificial Intelligence in Education (AIED 2009), Brighton, England, (July 2009)
A. Harrer, S. Zeini, and S. Ziebarth. Proceedings of the 2009 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2009), Athens, Greece, (July 2009)
N. Malzahn, T. Urspruch, M. Tünte, and H. Hoppe. Virtuelle Organisationen und Neue Medien 2005. Workshop GeNeMe2005 Gemeinschaft in Neuen Medien, TU Dresden, Dresden, Technische Universität Dresden, Fakultät Informatik, Institut für Software- und Multimediatechnik, (2005)Workshop GeNeMe2005 Gemeinschaft in Neuen Medien, TU Dresden, 6. und 7. Oktober 2005, ISBN: 3-86005-491-0.
M. Milrad, H. Hoppe, J. Gottdenker, and M. Jansen. Proceedings of the 2nd IEEE International Workshop on Wireless and Mobile Technologies in Education, WMTE 2004, page 182-186. Los Alamitos, California (USA), , (2004)
N. Pinkwart, M. Jansen, M. Oelinger, L. Korchounova, and H. Hoppe. Workshop proceedings of the 3rd International Conference on Adaptive Hypermedia, page 372-376. Technische Universiteit Eindhoven, The Netherlands, , (2004)