WASSMUTH, Ralf. Ganzjährige Freilandhaltung von Rindern. agricultural engineering.eu, [S. l.], v. 57, n. 4, p. 226–227, 2002. DOI: 10.15150/lt.2002.1645. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2002-57-4-226-227. Acesso em: 19 apr. 2024.