Videla, C., and C. Aguilar. “Effectiveness of Shrinkage-Reducing Admixtures on Portland Pozzolan Cement Concrete”. Materiales de Construcción 55, no. 278 (June 30, 2005): 13–28. Accessed May 8, 2024. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/186.