Nonverbal Synchrony or Random Coincidence? How to Tell the Difference. - Fabian Ramseyer; Wolfgang Tschacher (COST 2102 Training School, 2009)

Measuring Multimodal Synchrony for Human-Computer Interaction. - Dennis Reidsma; Anton Nijholt; Wolfgang Tschacher; Fabian Ramseyer (CW, 2010)