HOLLSTEIN, Armin; BILLER, Rainer H. Erkennung und gezielte Kontrolle von Unkraut. agricultural engineering.eu, [S. l.], v. 52, n. 6, p. 292–293, 1997. DOI: 10.15150/lt.1997.2465. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/1997-52-6-292-293. Acesso em: 18 apr. 2024.