“International Calibration Extract for HPLC Analysis of α- and β-Acids in Hops and Hop Products: Submitted on Behalf of the EBC ASBC Joint Hops Sub-Committee”. BrewingScience 51, no. 9/10 (October 30, 1998): 165. Accessed May 30, 2026. https://brewingscience.de/index.php/brewingscience/article/view/703.