HOPPE, Ulrich; MEYER, Henning J. Ursachen von Traktorunfällen. agricultural engineering.eu, [S. l.], v. 60, n. 2, p. 90–91, 2005. DOI: 10.15150/lt.2005.1174. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2005-60-2-090-091. Acesso em: 20 apr. 2024.