B. Adler, and L. de Alfaro. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 261--270. New York, NY, USA, ACM Press, (2007)
R. Klein. http://wwwpi6.fernuni-hagen.de/Lehre/Kurse/Geometrie/demo.pdf, (April 1998)öffentliche Schnupperfassung der Kurseinheiten 1
und 2 zum Kurs~1840 der FernUniversität Hagen.
M. Halvey, and M. Keane. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 1313--1314. New York, NY, USA, ACM Press, (2007)
M. Atzmueller, D. Arnu, and A. Schmidt. Proc. Annual Machine Learning Conference of the Benelux (Benelearn 2017), Eindhoven, The Netherlands, Eindhoven University of Technology, ((accepted) 2017)
D. Newman, J. Lau, K. Grieser, and T. Baldwin. Human Language Technologies: The 2010 Annual Conference of the North American Chapter of the Association for Computational Linguistics, page 100--108. Los Angeles, California, Association for Computational Linguistics, (June 2010)
K. Smets, B. Goethals, and B. Verdonk. Proceedings of the Association for the Advancement of Artificial Intelligence (AAAI) Workshop on Wikipedia and Artificial Intelligence: An Evolving Synergy (WikiAI08), page 43--48. AAAI Press, (2008)