Maria Letizia Marchegiani Fiora Pirri Matia Pizzoli Multimodal Speaker Recognition in a Conversation Scenario. 11-20 2009 ICVS http://dx.doi.org/10.1007/978-3-642-04667-4_2 conf/icvs/2009 db/conf/icvs/icvs2009.html#MarchegianiPP09