NIEDERHAUSER, Bernhard. Metrology in Gas Analysis at the Federal Office of Metrology METAS. CHIMIA, [S. l.], v. 63, n. 10, p. 650, 2009. DOI: 10.2533/chimia.2009.650. Disponível em: https://www.chimia.ch/chimia/article/view/2009_650. Acesso em: 9 apr. 2025.