García Giraldo, J. M., R. L. Bonett Díaz, and C. Ledezma Araya. “Analytical Model for Compression Behavior of Hollow Concrete Blocks”. Revista De La Construcción. Journal of Construction, vol. 12, no. 3, Dec. 2013, pp. 79-85, https://revistaingenieriaconstruccion.uc.cl/index.php/RDLC/article/view/13646.