KAILA, A. Total content of phosphorus in some Finnish soils. Agricultural and Food Science, [S. l.], v. 35, n. 1, p. 19–26, 1963. DOI: 10.23986/afsci.71593. Disponível em: https://journal.fi/afs/article/view/71593. Acesso em: 25 nov. 2024.