DANIELSON , B. G.; ÖBERG , Å. Ultramicroanalysis of Metals by Means of an Integrating Atomic Absorption Spectrometer and a Carbon Filament Atom Reservoir. Upsala Journal of Medical Sciences, [S. l.], v. 80, n. 2, p. 71–76, 1975. DOI: 10.3109/03009737509178996. Disponível em: https://ujms.net/index.php/ujms/article/view/7360. Acesso em: 13 nov. 2026.