PESSI, Y. Fertilization of Sphagnum bogs, on the basis of certain field experiments at Leteensuo. Agricultural and Food Science, [S. l.], v. 32, n. 1, p. 144–157, 1960. DOI: 10.23986/afsci.71517. Disponível em: https://journal.fi/afs/article/view/71517. Acesso em: 27 sep. 2024.