SPECTROPHOTOMETRY APPLICATION FOR THE MONTMORILLONITE CONTENT DETERMINATION IN MOULDING SANDS WITH BENTONITE. Metallurgy and Foundry Engineering, [S. l.], v. 37, n. 1, p. 73, 2011. DOI: 10.7494/mafe.2011.37.1.73. Disponível em: https://journals.agh.edu.pl/mafe/article/view/375. Acesso em: 13 mar. 2025.