KIVINEN, E. Yhdysvaltain soista. Agricultural and Food Science, [S. l.], v. 25, n. 1, p. 61–76, 1953. DOI: 10.23986/afsci.71348. Disponível em: https://journal.fi/afs/article/view/71348. Acesso em: 1 jun. 2024.