FELLER, Bernhard. Optimierung der konventionellen Sauenhaltung. agricultural engineering.eu, [S. l.], v. 55, n. 3, p. 246–247, 2000. DOI: 10.15150/lt.2000.1897. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2000-55-3-246-247. Acesso em: 4 mai. 2024.