Gahr, Andreas, Adrian Forster, and Filip Van Opstaele. “Reproducibility Trials in a Research Brewery and Effects on the Evaluation of Hop Substances in Beer: Part 2: Reproducibility in Moderately Aged Beers”. BrewingScience 71, no. 11/12 (December 20, 2018): 110–115. Accessed May 30, 2026. https://brewingscience.de/index.php/brewingscience/article/view/276.