PALOHEIMO, L.; VAINIO, K. A. On the use of ZnCl2 together with HCl in lignin determinations. Agricultural and Food Science, [S. l.], v. 31, n. 1, p. 45–48, 1959. DOI: 10.23986/afsci.71504. Disponível em: https://journal.fi/afs/article/view/71504. Acesso em: 19 oct. 2024.