WISCHERS, G. Initial calculation of the compression strength of concrete from the compression strength of normalized cement mortar, according to DIN 1 164 E (ISO test method). Materiales de Construcción, [S. l.], v. 20, n. 137, p. 88–92, 1970. DOI: 10.3989/mc.1970.v20.i137.1570. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1570. Acesso em: 2 may. 2024.