Castro Valero, G. J., and F. de J. Sarmiento Carrasquero. “Calculation and Design of a Railway Bridge Section of Metallic Structure in El Vigía, Mérida State”. Gaceta Técnica, vol. 21, no. 1, Jan. 2020, pp. 3-26, https://revistas.uclave.org/index.php/gt/article/view/2481.