Kammhuber, Klaus, et al. “Influence of the Date of Harvest on the Sulphur Compounds of the ‘Special Flavour Hop’ Varieties Cascade, Mandarina Bavaria, Hallertau Blanc, Huell Melon and Polaris”. BrewingScience, vol. 70, no. 9/10, Oct. 2017, pp. 124-30, https://doi.org/10.23763/BrSc17-12Kammhuber.