WALKOWIAK, Krzysztof. An exact algorithm for design of content delivery networks in MPLS environment. Journal of Telecommunications and Information Technology, [S. l.], v. 16, n. 2, p. 13–22, 2004. DOI: 10.26636/jtit.2004.2.245. Disponível em: https://jtit.pl/jtit/article/view/245. Acesso em: 9 oct. 2025.