1. Axelsson, J., Cross, C., Lie, H.W., McCobb, G., Raman, T.V., Wilson, L.: XHTML+Voice Profile 1.0. Recommendation, World Wide Web Consortium, W3C (2001), http://www.w3.org/TR/xhtml+
2. Calvary, G., Coutaz, J., Bouillon, L., Florins, M., Limbourg, O., Marucci, L., Paternò, F., Santoro, C., Souchon, N., Thevenin, D., Vanderdonckt, J.: The CAMELEON reference framework. CAMELEON project, Deliverable 1.1 (2002)
3. Clark, J.: Xsl Transformations (XSLT) version 1.0. Technical Report, W3C (1999)
4. Coutaz, J., Nigay, L., Salber, D., Blandford, A., May, J., Young, R.: Four Easy Pieces for Assessing the Usability of Multimodal Interaction: the CARE Properties. In: Proceedings INTERACT 1995, pp. 115–120 (1995)
5. Honkala, M., Pohja, M.: Multimodal interaction with XForms. In: Proceedings ICWE 2006, pp. 201–208 (2006)