RADOS, Ivan. Availability analysis and comparison of different WDM systems. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 28, n. 2, p. 114–119, 2007. DOI: 10.26636/jtit.2007.2.817. Disponível em: https://www.jtit.pl/jtit/article/view/817. Acesso em: 13 jun. 2026.