SILLANPÄÄ, M.; LAKANEN, E. Trace element contents of plants as a function of readily soluble soil trace elements. Agricultural and Food Science, [S. l.], v. 41, n. 1, p. 60–67, 1969. DOI: 10.23986/afsci.71725. Disponível em: https://journal.fi/afs/article/view/71725. Acesso em: 17 aug. 2024.