GURK, Stefan; BRUNSCH, Reiner; KAUFMANN, Otto. Systematische Spurengasanalysen in Milchviehställen. agricultural engineering.eu, [S. l.], v. 52, n. 4, p. 206–207, 1997. DOI: 10.15150/lt.1997.2619. Disponível em: http://195.37.233.11/landtechnik/article/view/1997-52-4-206-207. Acesso em: 29 apr. 2024.