AURA, E. Oxygen as an exchangeable ligand in soil . Agricultural and Food Science, [S. l.], v. 52, n. 1, p. 34–44, 1980. DOI: 10.23986/afsci.72028. Disponível em: https://journal.fi/afs/article/view/72028. Acesso em: 24 jul. 2024.