Lantian Li Dong Wang 0013 Askar Rozi Thomas Fang Zheng Cross-lingual speaker verification with deep feature learning. 1040-1044 2017 APSIPA https://doi.org/10.1109/APSIPA.2017.8282182 conf/apsipa/2017 db/conf/apsipa/apsipa2017.html#LiWRZ17