Herbert H. Clark. Mixing virtual and actual. In Francis K. H. Quek, Jie Yang, Dominic W. Massaro, Abeer A. Alwan, Timothy J. Hazen, editors, Proceedings of the 8th International Conference on Multimodal Interfaces, ICMI 2006, Banff, Alberta, Canada, November 2-4, 2006. pages 3, ACM, 2006. [doi]
Abstract is missing.