SAGRERA, J. L. Free lime quantitative determination by X ray diffraction, on anhiydrous and dried cement. Materiales de Construcción, [S. l.], v. 37, n. 207, p. 51–55, 1987. DOI: 10.3989/mc.1987.v37.i207.862. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/862. Acesso em: 30 jan. 2023.