EHLERT, Detlef. Zweiebenen-Schneidwerk für die Hanfernte. agricultural engineering.eu, [S. l.], v. 52, n. 1, p. 24–25, 1997. DOI: 10.15150/lt.1997.2579. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/1997-52-1-024-025. Acesso em: 27 apr. 2024.