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. Lecture Notes in Computer Science 2252, Springer 2001, ISBN 3-540-43035-0