ELLERSIEK, Hans-Heinrich. Trends bei der Schweinehaltung. agricultural engineering.eu, [S. l.], v. 59, n. 6, p. 316–317, 2004. DOI: 10.15150/lt.2004.1362. Disponível em: http://195.37.233.11/landtechnik/article/view/2004-59-6-316-317. Acesso em: 5 mai. 2024.