GERIGHAUSEN, Heinz-Günzher. Techniktrends für die organische Düngung. agricultural engineering.eu, [S. l.], v. 57, n. 6, p. 324–325, 2002. DOI: 10.15150/lt.2002.1672. Disponível em: http://195.37.233.21/landtechnik/article/view/2002-57-6-324-325. Acesso em: 16 nov. 2024.