KAILA, A.; HÄNNINEN, P. Response of winter rye to hyperphosphate and superphosphate. Agricultural and Food Science, [S. l.], v. 33, n. 1, p. 39–50, 1961. DOI: 10.23986/afsci.71562. Disponível em: https://journal.fi/afs/article/view/71562. Acesso em: 7 may. 2024.