HAGEN, W. Determination of Calcium in Wort by Atomic Absorption Spectrophotometry: Submitted on behalf of the Analysis Committee of the European Brewery Convention. BrewingScience, [S. l.], v. 55, n. 11/12, p. 233, 2002. Disponível em: https://brewingscience.de/index.php/brewingscience/article/view/589. Acesso em: 30 may. 2026.