HELLMAN, T.; OJALA, M.; VARO, M. The use of ultrasonics in phenotype testing of rams. Agricultural and Food Science, [S. l.], v. 48, n. 4, p. 395–406, 1976. DOI: 10.23986/afsci.71917. Disponível em: https://journal.fi/afs/article/view/71917. Acesso em: 19 may. 2024.