On the performance of isolated word speech recognizers using vector quantization and temporal energy contours. - Lawrence R. Rabiner; Kuk-Chin Pan; Frank K. Soong (AT&T Bell Lab. Tech. J., 1984)

An efficient vector-quantization preprocessor for speaker independent isolated word recognition. - Kuk-Chin Pan; Frank K. Soong; Lawrence R. Rabiner; A. F. Bergh (ICASSP, 1985)

A vector-quantization-based preprocessor for speaker-independent isolated word recognition. - Kuk-Chin Pan; Frank K. Soong; Lawrence R. Rabiner (IEEE Trans. Acoust. Speech Signal Process., 1985)