Chávez-García, H. L., E. M. Alonso-Guzmán, W. Martínez-Molina, M. Graff, and J. C. Arteaga-Arcos. “Prediction of the Static Modulus of Elasticity Using Four Non Destructive Testing”. Revista De La Construcción. Journal of Construction, vol. 13, no. 1, Apr. 2014, pp. 33-40, https://ojs.uc.cl/index.php/RDLC/article/view/13572.