A Knowledge-Based Chinese Letter-Writer. - Toh-Tzu Koh (Int. J. Pattern Recognit. Artif. Intell., 1988)

On the Design of a Frame-Based Hypermedia System. - Toh-Tzu Koh; Peing Ling Loo; Tat-Seng Chua (UK Hypertext, 1989)