Gómez, M. A., G. Bejarano Gaitán, and J. A. Osorio. “Improvement of Mechanical and Tribological Properties in Industrial Tools by Means of Application of TiN/ZrN Multilayer Coatings”. Revista Facultad De Ingeniería Universidad De Antioquia, no. 54, Jan. 2010, pp. 91-100, https://revistas.udea.edu.co/index.php/ingenieria/article/view/14169.