1. ITU-T, Spectral grids for wdm applications: Dwdm frequency grid, Recommendation, G.649.1 (2002).
2. Wavelength Selective WDM Network Design: How Bad is Shortest Path Routing?;Saad,2007
3. P. Psenak, S. Previdi, C. Filsfils, H. Gredler, R. Shakir, W. Henderickx, J. Tantsura, OSPF Extensions for Segment Routing, 2019, (RFC 8665). 10.17487/RFC8665.
4. Distributed path reservation algorithms for multiplexed all-optical interconnection networks;Yuan;IEEE Trans. on Computers,1999
5. A. Bashandy, C. Filsfils, S. Previdi, B. Decraene, S. Litkowski, R. Shakir, Segment Routing with the MPLS Data Plane, 2019, (RFC 8660). 10.17487/RFC8660.