Tzanakaki A, Katrinis K, Politi T, Stavdas A, Pickavet M, Van Daele P, Simeonidou D, O'Mahony MJ, Aleksi? S, Wosinska L, et al. Dimensioning the future pan-European optical network with energy efficiency considerations. Journal of Optical Communications and Networking [Internet]. 2011;3:272-280.