Dias, J., Bastos, R., Fernandes, J., João Tavares & Santos, P. (2009). Using hand gesture and speech in a multimodal augmented reality environment. In Miguel Sales Dias, Sylvie Gibet, Marcelo M. Wanderley, Rafael Bastos (Ed.), Gesture-based human-computer interaction and simulation: 7th International Gesture Workshop, GW 2007: Conference proceedings. (pp. 175-180). Lisbon: Springer.