Rodríguez, A., L. Ramirez, and J. Martinez. “Heuristic Algorithms: Novel Solution for RWA Problem in WDM Optical Networks”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 10, no. 1-4, Jan. 2018, pp. 1-7, https://jtec.utem.edu.my/jtec/article/view/3568.