In: G. Kreuzberger; A. Lunzer; R. Kaschek (Hrsg.). Interdisciplinary Advances in Adaptive and Intelligent Assistant Systems: Concepts, Techniques, Applications and Use. Chapter 7, Pages 153-176, Hershey Idea Group, New York, NY, USA, 2010.
In: N. Pinkwart; Bruce McLaren (Hrsg.). Educational Technologies for Teaching Argumentation Skills. Pages 169-197, ISBN 978-1-60805-545-6, Bentham Science Publishers, 2012.