STEPHAN, Christoph; KROMER, Karl-Hans. Energiebilanz von Zuckerrübenanbauverfahren. agricultural engineering.eu, [S. l.], v. 54, n. 1, p. 20–21, 1999. DOI: 10.15150/lt.1999.2328. Disponível em: http://195.37.233.11/landtechnik/article/view/1999-54-1-020-021. Acesso em: 2 mai. 2024.