Ladel, S., & Kortenkamp U.  (2012).  Early maths with multi-touch ? an activity-theoretic approach.  Proceedings of POEM 2012.  

Bescherer, C., Herding D., Kortenkamp U., Müller W., & Zimmermann M.  (2012).  E-learning Tools with Intelligent Assessment and Feedback.  (Graf, S., Lin F., Kinshuk, & McGreal R., Ed.).Intelligent and Adaptive Learning Systems: Technology Enhanced Support for Learners and Teachers.  

El-Demerdash, M., & Kortenkamp U.  (2009).  The Effectiveness of an Enrichment Program Using Dynamic Geometry Software in Developing Mathematically Gifted Students' Geometric Creativity.  (Bardini, C., Fortin C., Oldknow A., & Vagost D., Ed.).Proceedings of the 9th International Conference on Technology in Mathematics Teaching.  

Kortenkamp, U.  (2005).  Experimentieren und Publizieren.  (Bender, P., Herget W., Weigand H-G., & Weth T., Ed.).WWW und Mathematik - Lehren und Lernen im Internet, Tagungsband der 21. Arbeitstagung des Arbeitskreis Mathematikunterricht und Informatik in Dillingen/Donau.  120-126.

Kortenkamp, U.  (2004).  Experimental mathematics and proofs ? what is secure mathematical knowledge?.  Zentralblatt für Didaktik der Mathematik. 36, 61?66.

Richter-Gebert, J., & Kortenkamp U.  (2000).  Euklidische und nicht-Euklidische Geometrie in Cinderella.  Journal für Mathematikdidaktik. 22, 303?324.

Kortenkamp, U.  (1997).  Every simplicial polytope with at most d+4 vertices is a quotient of a neighborly polytope.  Discrete & Computational Geometry. 18, 455?462.

Kortenkamp, U., Richter-Gebert J., Sarangarajan A., & Ziegler G. M.  (1997).  Extremal properties of 0/1-polytopes.  Discrete & Computational Geometry. 17, 439?448.