M. Muehlenbrock, F. Tewissen, и H. Hoppe. Proceedings of 8th World Conference on Artificial Intelligence in Education (AIED'97), Kobe, Japan, , (1997)August 20-22, 1997.
M. Mühlenbrock. Proceedings of the Young Researcher Track at the 9th International Conference on Artificial Intelligence in Education AIED-99, , (1999)
F. Tewissen, N. Baloian, H. Hoppe, и E. Reimberg. Proceedings of 6th International Workshop on Groupware, CRIWG 2000, Madeira, Portugal, IEEE CS Press, (2000)18 - 20 October 2000.
F. Tewissen, A. Lingnau, и H. Hoppe. Lecture Notes in Computer Science 1839, Intelligent Tutoring Systems, стр. 252-261. Montreal, Springer, (2000)Paper submitted to ITS 2000.
M. Jansen, N. Pinkwart, и F. Tewissen. LLWA 01 - Tagungsband der GI-Workshopwoche "Lernen-Lehren-Wissen-Adaptivität" Forschungsbericht 763, Universität Dortmund, , (2001)
F. Tewissen, A. Lingnau, H. Hoppe, G. Mannhaupt, и D. Nischk. Proceedings of the European Conference on Computer-Supported Collaborative Learning (Euro-CSCL 2001), стр. 593-600. Maastricht, The Netherlands, , (2001)