. Etsi-gs-nfv-man-001, Network Functions Virtualisation (NFV) ; Management and Orchestration, vol.12, 2014.

C. Linton and . Freeman, A set of measures of centrality based on betweenness, Sociometry, vol.40, issue.1, pp.35-41, 1977.

T. Korkmaz and M. Krunz, Source-oriented topology aggregation with multiple QoS parameters in hierarchical networks, ACM Transactions on Modeling and Computer Simulation, vol.10, issue.4, pp.295-325, 2000.

G. +-19]-cédric-morin and . Texier, Christelle Caillouet, Gilles Desmangles, and Cao-Thanh Phan. VNF placement algorithms to address the mono-and multi-tenant issues in edge and core networks, 8th IEEE International Conference on Cloud Networking (IEEE CloudNet 2019), pp.1-6, 2019.

S. Uludag, K. Lui, K. Nahrstedt, and G. Brewster, Analysis of topology aggregation techniques for QoS routing, ACM Computing Surveys (CSUR), vol.39, issue.3, 2007.