KAITERA, P. Peltojen salaojituksesta. Agricultural and Food Science, [S. l.], v. 23, n. 1, p. 1–32, 1951. DOI: 10.23986/afsci.71290. Disponível em: https://journal.fi/afs/article/view/71290. Acesso em: 3 may. 2024.