VALDMAA, K. Field experiments with bark humus MoDo-Mylla. Agricultural and Food Science, [S. l.], v. 46, n. 3, p. 320–327, 1974. DOI: 10.23986/afsci.71889. Disponível em: https://journal.fi/afs/article/view/71889. Acesso em: 22 nov. 2024.