M. Biendl and B. Foster, “New International Calibration Standard (ICS-H2) for HPLC Analysis of Hexahydroiso-α-acids. - Submitted on behalf of the International Hop Standards Committee”, BrSc, vol. 69, no. 1/2, p. 8, Feb. 2016, Accessed: May 30, 2026. [Online]. Available: https://brewingscience.de/index.php/brewingscience/article/view/286