Jiming Liu Pong Chi Yuen Chun Hung Li Joseph Kee-Yin Ng Toru Ishida Active Media Technology, 6th International Computer Science Conference, AMT 2001, Hong Kong, China, December 18-20, 2001, Proceedings AMT Lecture Notes in Computer Science 2252 Springer 2001 3-540-43035-0 db/conf/amt/amt2001.html