1. Meuse P. A 2400bps multiband excitation vocoder. ICASSP Proceedings, pp. 9–12, February 1990.
2. Digital Voice Systems, Inmarsat-M Voice Codec, Version 3.0. Inmarsat, 6 August 1991.
3. Das AD, Gersho A. Enhanced multiband excitation coding of speech at 2.4kbps with phonetic classification and variable dimension vector quantization. Signal Processing VII: Theories and Applications. European Association for Signal Processing, pp. 943–46, 1994.
4. Barnwell III TP, Nayebi K, Richardson CH. Speech coding: a computer laboratory textbook. John Wiley & Sons, Inc.
5. Transform coding of audio signals using perceptual noise criteria;Johnston;IEEE Journal on Selected Areas in Communications,1988