1. Integrated services in the Internet architecture: an overview;Braden;IETF RFC,1994
2. An architecture for differentiated services;Blake;IETF RFC,1998
3. ITU-T Recommendation Y.1541, Network performance objectives for IP-based services, 2006.
4. 3rd Generation Partnership Project (3GPP) TS 23.207, End to end quality of service concept and architecture, Release 5, 2003. Available from: .
5. Technical challenges in the delivery of interprovider QoS;Jacobs;IEEE Communications Magazine,2005