Echaveguren, Tomás, and Diego Carrasco. “Estimation of Critical Length in Ascending Grades of Two-Lane Rural Roads”. Revista Ingeniería de Construcción 30, no. 1 (April 13, 2015): 5–16. Accessed November 22, 2024. https://revistaingenieriaconstruccion.uc.cl/index.php/ric/article/view/16935.