RUIZ DE GAUNA, Ángel. Determination of cement proportioning of mortars and set concretes, in cases where the usual methods for this determination are not applicable. Materiales de Construcción, [S. l.], v. 16, n. 121, p. 41–54, 1966. DOI: 10.3989/mc.1966.v16.i121.1720. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1720. Acesso em: 6 may. 2024.