1. D. Johnson, C. Perkins, J. Arkko, Mobility Support in IPv6, IETF RFC 3775, June 2003.
2. H. Soliman, C. Castelluccia, K.E. Malki, L. Bellier, Hierarchical Mobile IPv6 mobility management (HMIPv6), IETF RFC 4140, August 2005.
3. Heterogeneous personal communications services: integration of PCS systems;Lin;IEEE Communications Magazine,1996
4. X. Xu, B. Mukherjee, B. Bhargava, Low-cost, low-delay location update/paging/scheme in hierarchical cellular networks, in: Proceedings of the ACM MobiDE 2003, September 2003.
5. K. Kawano, K. Kinoshita, K. Murakami, Multilevel hierarchical distributed IP mobility management scheme for wide area networks, in: Proceedings of the IEEE ICCCN 2002, October 2002.