KAILA, A. Calcium, magnesium and potassium in mineral soils from the southern half of Finland. Agricultural and Food Science, [S. l.], v. 45, n. 3, p. 254–261, 1973. DOI: 10.23986/afsci.72945. Disponível em: https://journal.fi/afs/article/view/72945. Acesso em: 8 may. 2024.