PAUL, Wolfgang; SPECKMANN, Hermann. Radarsensoren - Neue Technologien zur präzisen Bestandsführung. agricultural engineering.eu, [S. l.], v. 59, n. 2, p. 92–93, 2004. DOI: 10.15150/lt.2004.1294. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2004-59-2-092-093. Acesso em: 4 mai. 2024.