Mejía-Bravo R. M., Caparroso-Pérez C. B., Ruiz-Restrepo X. C., Espitia-Mesa J. F., Moreno-Castillo Y. A., and Montoya-Sepúlveda A. F. “Ex Vivo Evaluation of the Retention of Procera® Zirconia-Yttria Systems With Different Cements”. Revista Facultad De Odontología Universidad De Antioquia, Vol. 26, no. 1, July 2014, pp. 44-61, https://revistas.udea.edu.co/index.php/odont/article/view/11295.