Designing Sound: Towards a System for Designing Audio Interfaces using Timbre Spaces. - Craig Nicol; Stephen A. Brewster; Philip D. Gray (ICAD, 2004)

Development and exploration of a timbre space representation of audio. - Craig Nicol (2005)

Comparing behavioural and self-report measures of engagement with an embodied conversational agent: a first report on eye tracking in Second Life. - Sara Dalzel-Job; Craig Nicol; Jon Oberlander (ETRA, 2008)