HARMS, Hans-Heinrich. Hydraulik in der Landtechnik – Entwicklungstendenzen. agricultural-engineering.eu, [S. l.], v. 56, n. 6, p. 388–389, 2001. DOI: 10.15150/lt.2001.1813. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2001-56-6-388-389. Acesso em: 28 märz. 2024.