KACZMAREK, Sylwester. Multistage optical switching networks. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 8, n. 2, p. 21–25, 2002. DOI: 10.26636/jtit.2002.2.127. Disponível em: https://www.jtit.pl/jtit/article/view/127. Acesso em: 15 jun. 2026.