MARTÍNEZ, Wilfredo. Nicaragua Road Network (Optimization and Maintenance). Nexo Revista Científica, [S. l.], v. 26, n. 1, p. 02–14, 2013. DOI: 10.5377/nexo.v26i1.1209. Disponível em: https://www.camjol.info/index.php/NEXO/article/view/1209. Acesso em: 5 dec. 2025.