1. Greenberg, S., & Arai, T. (2004). What are the essential cues for understanding spoken languages. IEICE Transaction on Information & System, E87-D, 1059.
2. Yin, B., Ambikairajah, E., & Chen, F. (2006). Combining prosodic and cepstral features in language identification. IEEE international conference on pattern recognition, Hong Kong, China.
3. Singer, E., Torres-Carrasquillo, P. A., Gleason, T. P., Campbell, W. M., D. A. Reynolds (2003). Acoustic, Phonetic, and Discriminative approaches to automatic language identification. EuroSpeech, Geneva, Switzerland.
4. Wong, E., & Sridharan, S. (2001). Fusion of output scores on language identification system. Workshop on Multilingual Speech and Language Processing, Aalborg Denmark.
5. Rong, T., Bin, M., Donglai, Z., Haizhou, L., & Eng Siong, C. (2006). Integrating acoustic, prosodic and phonotactic features for spoken language identification. IEEE International Conference on Acoustics, Speech, and Signal Processing, Toulouse, France.