1. Automatic Speech Recognition: the development of the Sphinx System;Lee,1989
2. L. R. Bahl et al., “Speech Recognition of a Natural Text Read as Isolated Words,” Proc. IEEE Int'l Conf. Acoustics, Speech, and Signal Processing, April 1981, pp. 1, 168–1, 171.
3. D.O. Kimbal et al., “Recognition Performance and Grammatical Constraints,” Proc. DARPA Speech Recognition Workshop, Feb. 1986, pp. 53–59.
4. Speech Communication: Human and Machine;O'Shaughnessy,1987
5. M.A. Franzini, M.J. Witbrock, and K.-F. Lee, “Speaker-Independent Recognition of Connected Utterances Using Recurrent and Nonrecurrent Neural Networks,” Proc. Int'l Joint Conf. Neural Networks, Vol.2, Washington, DC, June 1989, pp.II-1 to II-6.