author = {J. Fierrez-Aguilar and J. Ortega-Garcia and J. Gonzalez-Rodriguez and J. Bigun},
booktitle = {Defense and Security Symposium, Biometric Technologies for Human Identification, BTHI},
month = {April},
pages = {544-554},
publisher = {Proc. SPIE},
title = {Kernel-based multimodal biometric verification using quality signals},
volume = {5404},
year = {2004},