CALLEJA, J. Sixth International Congress on Chemistry of Cement. Materiales de Construcción, [S. l.], v. 25, n. 157, p. 5–16, 1975. DOI: 10.3989/mc.1975.v25.i157.1278. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1278. Acesso em: 3 may. 2024.