KURKI, M. Suomen viljelysmaiden sinkkipitoisuudesta . Agricultural and Food Science, [S. l.], v. 46, n. 3, p. 208–214, 1974. DOI: 10.23986/afsci.71898. Disponível em: https://journal.fi/afs/article/view/71898. Acesso em: 17 jul. 2024.