F.J. Moreno-Muro, R. Rumipamba-Zambrano, P. Pavón-Marino, J. Perelló, J. M. Gené S. Spadaro, “Evaluation of Core-Continuity-Constrained ROADMs for Flex-Grid/MCF Optical Networks”, to appear in IEEE/OSA Journal on Optical Communications and Networking, 2018.