MATIKKALA, E.; KREULA, M. Studies on the sulfur metabolism of cows on protein-free and low-protein feed . Agricultural and Food Science, [S. l.], v. 49, n. 4, p. 264–273, 1977. DOI: 10.23986/afsci.71943. Disponível em: https://journal.fi/afs/article/view/71943. Acesso em: 26 apr. 2024.