A. Siddique Muqaddas, R. Stange Tessinari, , M. Garrich, E. Hugues-Salas, O. González de Dios, L. Luque, A. Giorgetti, A. Sgambelluri, F. Cugini, F. Moreno-Muro, R. Morro, K. Farrow, A. Wonfor, M. Channegowda, P. Pavón-Mariño, A. Lord, R. Nejabati, D. Simeonidou, NFV Orchestration Over Disaggregated Metro Optical Networks With End-to-End Multi-Layer Slicing Enabling Crowdsourced Live Video Streaming , Journal of Optical Communications and Networking, Vol.13, Issue 8, pp.D68 - D79, July 2021,