Aristizábal–Soto, H. D., et al. “Simulation of Mechanical Properties of Zr ZrN and TiN ZrN Multilayers Using the Finite Elements Method”. Ingeniería Y Ciencia, vol. 6, no. 11, June 2010, pp. 91-104, https://publicaciones.eafit.edu.co/index.php/ingciencia/article/view/248.