Rodríguez Arroyave, C. A., and D. F. Muñoz Toro. “Use of Rapid Tooling Techniques for the Fabrication of Forming Prototypes”. Revista Universidad EAFIT, vol. 41, no. 138, June 2012, pp. 96-109, https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/859.