BUCKEE, G. K. Determination of Iso-Alpha-, Alpha- and Beta-Acids in Hop and Isomerized Hop Extracts: A Collaborative Trial: Submitted on behalf of the Analysis Committee of the European Brewery Convention. BrewingScience, [S. l.], v. 47, n. 9, p. 284–286, 1994. Disponível em: https://brewingscience.de/index.php/brewingscience/article/view/840. Acesso em: 18 oct. 2026.