V. Varalakshmi, S. Leelashyam, M Venkataratnam. “Routing and Spectrum Allocation in Elastic Optical Networks: A Tutorial”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 11, no. 3, Mar. 2023, pp. 1877-85, doi:10.17762/turcomat.v11i3.13492.