1. ITU-T Recommendation Y.3001: Future networks: Objectives and design goals (2011).
2. Roslyakov, A.V. and Vanyashin, S.V., [Future Networks], PSUTI, Samara (2015).
3. Next Generation Networks NGN;Roslyakov,2008
4. ITU-T Recommendation Y.3021: Framework of energy saving for future networks (2012).
5. ITU-T Recommendation Y.3022: Measuring energy in networks (2013).