A low-cost real-time imaging and processing system. - Hon Fung Li; C. M. Tsang; Y. S. Cheung (Softw. Microsystems, 1983)

An Agent-Based Micropayment System for E-Commerce. - T. O. Lee; Y. L. Yip; C. M. Tsang; Kam-Wing Ng (E-Commerce Agents, 2001)