ALT, Norbert. Technische Regelwerke in der Europäischen Union. agricultural engineering.eu, [S. l.], v. 52, n. 5, p. 256–257, 1997. DOI: 10.15150/lt.1997.2511. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/1997-52-5-256-257. Acesso em: 26 apr. 2024.