참고문헌
- EE Times MPEG-21 spec adds QoS, rights management features P. Clarke
- ISO/IEC JTC1/SC29/WG11 (N3939) Part 1 : Vision, Technologies and Strategy ISO/IEC
- ISO/IEC JTC1/SC29/WG11 (N4041) MPEG-21 overview ISO/IEC
- RFC 2205 Resource ReSerVation Protocol (RSVP)
- RFC2748 The COPS (Common Open Policy Service) Protocol
- SDMI portable device specification SDMI