A proposal on open DRM system coping with both benefits of rights-holders and users. - Akiko Seki; Wataru Kameyama (GLOBECOM, 2003)

On Content Distribution Model and Analyzing Distribution Effectiveness. - Pao Sriprasertsuk; Akiko Seki; Wataru Kameyama (Inf. Media Technol., 2007)

Extended rights vocabulary for authoring tools interoperability. - Yuan-Kang Wang; Akiko Seki; Wataru Kameyama (ICIMCS, 2009)