Alessandro Colombo Claudio Cusano Raimondo Schettini Face<sup>3</sup> a 2D+3D Robust Face Recognition System. 393-398 2007 conf/iciap/2007 ICIAP http://doi.ieeecomputersociety.org/10.1109/ICIAP.2007.64 db/conf/iciap/iciap2007.html#ColomboCS07