Von Heinz Pisters, -. “«A Posteriori» Determination of the Mixing Proportions of Concrete With Calcareous Aggregates”. Materiales de Construcción 22, no. 147 (September 30, 1972): 59–68. Accessed April 29, 2024. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1421.