Ivan Magrin-Chagnolleau Geoffrey Durou Frédéric Bimbot Application of time-frequency principal component analysis to text-independent speaker identification. 371-378 2002 10 IEEE Transactions on Speech and Audio Processing 6 http://dx.doi.org/10.1109/TSA.2002.800557 db/journals/taslp/taslp10.html#Magrin-ChagnolleauDB02