WIELGOSZ, R. I.; KAARLS, R. International Activities in Metrology in Chemistry. CHIMIA, [S. l.], v. 63, n. 10, p. 606, 2009. DOI: 10.2533/chimia.2009.606. Disponível em: https://ojs.chimia.ch/chimia/article/view/2009_606. Acesso em: 30 jan. 2023.