Giovanni Frattini Luigi Romano Vladimiro Scotto di Carlo Pierpaolo Petriccione Gianluca Supino Giuseppe Leone Ciro Autiero Multimodal Architectures: Issues and Experiences. 974-983 2006 conf/otm/2006-w1 OTM Workshops (1) http://dx.doi.org/10.1007/11915034_122 db/conf/otm/otm2006-w1.html#FrattiniRCPSLA06