author = {D. Garcia-Romero and J. Gonzalez-Rodriguez and J. Fierrez-Aguilar and J. Ortega-Garcia},
booktitle = { Proc. 4th IAPR Intl. Conf. on Audio- and Video-based Biometric Person Authentication, AVBPA},
month = {June},
pages = {208-213},
publisher = {Springer},
series = {LNCS},
title = {U-NORM likelihood normalization for speaker recognition systems based on Personal Identification Number (PIN)},
volume = {2688},
year = {2003},