Rights Protection for Digital Contents Redistribution Over the Internet. - Shing-Chi Cheung; Hanif Curreem (COMPSAC, 2002)

Implementing Watermark Token in WS-Security for Digital Content Distribution. - Shing-Chi Cheung; Hanif Curreem; Dickson K. W. Chiu; Patrick C. K. Hung (ICWS, 2003)