RIEGEL, Marion; SCHICK, Mathias; HARTMANN, Wilfried. Arbeitszeitbedarf in der Mutterkuhhaltung. agricultural engineering.eu, [S. l.], v. 62, n. 5, p. 344–345, 2007. DOI: 10.15150/lt.2007.1011. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2007-62-5-344-345. Acesso em: 20 juli. 2024.