Generating Socially Appropriate Tutorial Dialog. - W. Lewis Johnson; Paola Rizzo; Wauter Bosma; Sander Kole; Mattijs Ghijsen; Herwin van Welbergen (ADS, 2004)

Multimodal Interaction in a Haptic Environment. - Anton Nijholt; Sander Kole; Job Zwiers (WHC, 2005)