Pierfrancesco Bellini Ivan Bruno Paolo Nesi Davide Rogai Paolo Vaccari Interoperable cross media content and DRM for multichannel distribution. 330-340 2007 Emerging Artificial Intelligence Applications in Computer Engineering series/faia/2007-160 db/series/faia/faia160.html#BelliniBNRV07 http://www.booksonline.iospress.nl/Content/View.aspx?piid=6972