Optimum Design of Tunnels. Tikrit Journal of Engineering Sciences, [S. l.], v. 14, n. 3, p. 50–68, 2007. DOI: 10.25130/tjes.14.3.03. Disponível em: https://www.tj-es.com/ojs/index.php/tjes/article/view/687.. Acesso em: 10 sep. 2026.