CAMOVSKA, D. B.; ARSOV, M. L.; GRCEV, T. P. Electrochemical and impedance characterization of passive films on niobium in alkaline and acidic solutions. Macedonian Journal of Chemistry and Chemical Engineering, [S. l.], v. 26, n. 2, p. 95–101, 2007. DOI: 10.20450/mjcce.2007.263. Disponível em: https://mjcce.org.mk/index.php/MJCCE/article/view/263. Acesso em: 1 may. 2024.