M. Araki. WMISI '07: Proceedings of the 2007 Workshop on Multimodal Interfaces in Semantic Interaction, Nagoya, Japan, page 58-62. New York, USA, ACM, (2007)
J. Angele, and M. Gesmann. Proceedings of the Second International Conference on Rules and Rule Markup Languages for the Semantic Web, Athens, GA, USA, page 58-66. (2006)