Carlos Segura Alberto Abad Javier Hernando Climent Nadeu Multispeaker Localization and Tracking in Intelligent Environments. 82-90 2007 CLEAR http://dx.doi.org/10.1007/978-3-540-68585-2_6 conf/clear/2007 db/conf/clear/clear2007.html#SeguraAHN07