Collaborative Research Centre "Situated Artificial Communicators" at the University of Bielefeld, Germany
In: Artificial Intelligence Review, Jg. 10 H. 3-4, S. 165-1701996Combining multi-sensory stimuli in virtual worlds - a progress report
In: Virtual Augmented and Mixed Reality. Designing and Developing Augmented and Virtual Environments, Jg. 8525, S. 44-542014A computational model of cooperative spatial behaviour for virtual humans
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In: Mathematikdidaktik im Wissenschaftsgefüge - Festschrift für Elmar Cohors-Fresenborg, Jg. FMD 40.2 (Band 2), S. 179-1932005Connecting question answering and conversational agents: Contextualizing German questions for interactive question answering systems
In: KI - Künstliche Intelligenz, Jg. 26 H. 4, S. 381-3902012Construct a sum: a measure of children's understanding of fraction size
In: Journal for research in mathematics education, Jg. 16 H. 2, S. 120-1311985