Biendl, M., & Anderegg, P. (2005). Modification of the method Analytica-EBC 7.7 (Alpha- and Beta-acids in Hops and Hop Products by HPLC): Submitted on behalf of the EBC Analysis Committee. BrewingScience, 58(3/4), 32-34. https://brewingscience.de/index.php/brewingscience/article/view/547