1. The Third Generation Partnership Project (3GPP), http://www.3gpp.org.
2. The European Telecommunications Standards Institute, http://www.etsi.org.
3. 3GPP TS 23.060, General Packet Radio Service, Description, Stage 2, December 2001.
4. Telecommunications and Internet Protocol Harmonization over Networks, QoS Class Specification, TS 101329-2, http://www.3gpp.org.
5. Mobility support in wireless Internet;Banerjee;IEEE Wireless Communications,2003