Complementary filtering technique for subband speech coder design. - Yong Ching Lim; S. N. Koh; Chi Chung Ko (ICASSP, 1987)

Development of order-16 integer transforms. - S. N. Koh; S. J. Huang; H. K. Tang (Signal Process., 1991)

Application of constrained optimization techniques to array pattern synthesis. - Meng Hwa Er; S. L. Sim; S. N. Koh (Signal Process., 1993)