HOY, Steffen; ZIRON, Martin; AMSEL, Ulrike. Warmwasserbett für Saugferkel. agricultural engineering.eu, [S. l.], v. 54, n. 2, p. 114–115, 1999. DOI: 10.15150/lt.1999.2309. Disponível em: http://195.37.233.11/landtechnik/article/view/1999-54-2-114-115. Acesso em: 3 mai. 2024.