RIEGEL, Marion; SCHICK, Matthias; HARTMANN, Wilfried. Arbeitszeitbedarf in der Rinderhaltung. agricultural-engineering.eu, [S. l.], v. 64, n. 5, p. 363–366, 2009. DOI: 10.15150/lt.2009.696. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2009-64-5-363-366. Acesso em: 29 märz. 2024.