1. Barth, D., Cohen, J., Fragopoulou, P., Hébuterne, G.: Wavelengths Assignment on a Ring All-Optical Metropolitan Area Network. In: Proceedings of the 3rd Workshop on Approximation and Randomization Algorithms in Communication Networks (ARACNE 2002), Rome, Italy (2002)
2. Bianco, A., Bonsignori, M., Leonardi, E., Neri, F.: Variable-Size Packets in Slotted WDM Ring Networks. In: Optical Network Design and Modelling (ONDM 2002), Torino, Italy (2002)
3. Series of Books in the Mathematical Sciences;M.R. Garey,1979
4. Gastal, L., Mautor, T., Rousseau, S., Barth, D., Cohen, J.: Comparison of Fixed Size and Variable Size Packet Models in an Optical Ring Network. Technical report, PRiSM, UMR 8144, University Versailles-Saint Quentin, 45 avenue des Etats Unis, 78035 Versailles Cedex, France (2004)
5. International Telecommunications Union. Convergence between Internet and Optical Networks. ITU News Magazine 2 (2002), http://www.itu.int/itunews/issue/2002/06/convergence.html