Matthew J. Beal Nebojsa Jojic Hagai Attias A Graphical Model for Audiovisual Object Tracking. 828-836 2003 25 IEEE Trans. Pattern Anal. Mach. Intell. 7 http://doi.ieeecomputersociety.org/10.1109/TPAMI.2003.1206512 db/journals/pami/pami25.html#BealJA03