Heindl, R.A., and Z.A. Post. “Preparation and Properties of High-Temperature Refractory Castables”. Materiales de Construcción, no. 017 (October 30, 1950): 47–48. Accessed May 3, 2024. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3182.