Routing, Modulation Level, and Spectrum Assignment in Elastic Optical Networks—A Serial Stage Approach with Multiple Sub-Sets of Requests Based on Integer Linear Programming. - Maidana Benítez, Luis Víctor; Villamayor Paredes, Melisa María Rosa; Colbes, José; Bogado-Martínez, César F.; Barán, Benjamin; Pinto-Roa, Diego P. (Mathematical & Computational Applications, 2023)