J. Allen, G. Ferguson, and A. Stent. IUI '01: Proceedings of the 6th international conference on Intelligent user interfaces, page 1--8. New York, NY, USA, ACM, (2001)
P. Andrews, M. Boni, and S. Manandhar. Proceedings of the AAAI 2006 Spring Symposium on Argumentation for Consumers of Healthcare, Stanford University, California, (27-29 03 2006)
P. Andrews, S. Manandhar, and M. Boni. Proceedings of the 9th SIGdial Workshop on Discourse and Dialogue, page 138--147. Columbus, Ohio, Association for Computational Linguistics, (June 2008)
N. Dahlbäck, A. Jönsson, and L. Ahrenberg. IUI '93: Proceedings of the 1st international conference on Intelligent user interfaces, page 193--200. New York, NY, USA, ACM, (1993)