KIVEKÄS, J.; KIVINEN, E. Observations on the mobilization of peat nitrogen in incubation experiments. Agricultural and Food Science, [S. l.], v. 31, n. 1, p. 268–281, 1959. DOI: 10.23986/afsci.71496. Disponível em: https://journal.fi/afs/article/view/71496. Acesso em: 18 sep. 2024.