GARTUNG, Jürgen; KNIES, Katja. Investitionsbedarf für Legehennenställe. agricultural-engineering.eu, [S. l.], v. 54, n. 5, p. 300–301, 1999. DOI: 10.15150/lt.1999.2202. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/1999-54-5-300-301. Acesso em: 29 märz. 2024.