A. Preece, S. Chalmers, C. McKenzie, J. Pan, and P. Gray. ICEC '06: Proceedings of the 8th international conference on Electronic
commerce, 156, page 151-161. Delta Fredericton, Fredericton, New Brunswick, Canada, ACM Press, (August 2006)
A. Preece, S. Chalmers, and C. McKenzie. Twenty-sixth SGAI International Conference on Innovative Techniques
and Applications of Artificial Intelligence, Cambridge, UK, (December 2006)In top 6 best refereed papers of the AI 2006 technical stream.