2[1]PAUL J.KUHN.the Development of the Next Generation Network (NGN),9th IFIP / IEEE International Symposium on Integrated Network Management,2005:16-36.
3[2]Telecommunications Standards Advisory Committee,Overview of Next Generation Networks (NGN),2005,13:82-96.
4[3]LENAHAM.Integrating Wireless with Next-Gen Networks,Telecommunications-Americas Edition,2000,34(11):103-106.
