KALVODA, L.; KLEPÁČEK, R. Extraction of Alkali Ions Investigated by Conductometric and pH Measurements. Acta Polytechnica, [S. l.], v. 46, n. 6, 2006. DOI: 10.14311/888. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/888.. Acesso em: 17 may. 2025.