Jia-Ching Wang Chung-Hsien Yang Jhing-Fa Wang Hsiao Ping Lee Robust Speaker Identification and Verification. 52-59 2007 2 IEEE Comput. Intell. Mag. 2 https://doi.org/10.1109/MCI.2007.353420 db/journals/cim/cim2.html#WangYWL07