1. Quality of Service, Delivering QoS on the Internet and in Corporate Networks;Ferguson,1998
2. A. Orda, Routing with end to end QoS guarantees in broadband networks, IEEE INFOCOM’98.
3. Topology information condensation in hierarchical networks;Van Mieghem;Comput. Net. ISDN Syst.,1998
4. Van Mieghem, P., Routing in a hierarchical structure, in: Proceedings of First IEEE International Conference on ATM (ICATM’98), 22–24 June, Colmar, France, pp. 378–384.
5. Computers and Intractability, A Guide to the Theory of NP-Completeness;Garey,1979