CIUIU, Daniel. Gordon and Newell queueing networks and copulas. Yugoslav Journal of Operations Research, [S. l.], v. 19, n. 1, p. 101–112, 2009. DOI: 10.2298/YJOR0901101C. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/257. Acesso em: 25 aug. 2025.