6Raymond Shih Ray Ku. Consumers and creativedestruction: fair use beyond market failure[EB/OL] . BerkeleyTech Law Journal,2003,18(2) . http//:www.law.berkeley.edu/journals/btlj/articles/vol18/Ku. stripped. Pdf,2009-05-28.
9Frank Hartung, Friedhelm Ramme. Digital Rights Management and Watermarking of Multimedia Content for M-Commerce Applications [J]. IEEE Communications Magazine, 2000,38 ( 11 ) : 78-79.
10Pamela Samuelson. DRM and,or, vs. the Law[J]. Communications of the ACM, 2003, 46(4):61-63.