1. Frontiers of DRM knowledge and technology.;H.Abie;IJCSNS International Journal of Computer Science and Network Security,2007
2. Apple. (2005). Apple FairPlay DRM. Retrieved January 2012, from http://www.apple.com/support/itunes/authorization/
3. Claudine, C., Milan, P., & Willem, J. (2004). Privacy-preserving digital rights management. Secure Data Management, 83-99.
4. Coral-Consortium. (2008). Creative content on-line: Coral response to the EU Commission consultation. Retrieved January 2012, from http://www.coral-interop.org/main/20080228CoralResponsetoEU:pdf=: DES. (1977). Data encryption standard. Federal Information Processing Standards Publication, 46(2).
5. Reselling Digital Content