BREHME, Ulrich; BAHR, Claudia; HOLZ, Roland. Brunsterkennung von Rindern. agricultural-engineering.eu, [S. l.], v. 58, n. 2, p. 106–107, 2003. DOI: 10.15150/lt.2003.1412. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2003-58-2-106-107. Acesso em: 29 märz. 2024.