A 4.8 kbps multi-band excitation speech coder. - John C. Hardwick; Jae S. Lim (ICASSP, 1988)

A real-time implementation of the improved MBE speech coder. - Michael S. Brandstein; Peter A. Monta; John C. Hardwick; Jae S. Lim (ICASSP, 1990)

The application of the IMBE speech coder to mobile communications. - John C. Hardwick; Jae S. Lim (ICASSP, 1991)

The dual excitation speech model. - John C. Hardwick (1992)

Speech enhancement using the dual excitation speech model. - John C. Hardwick; C. D. Yoo; Jae S. Lim (ICASSP (2), 1993)