A. Gahr, A. Forster, and F. Van Opstaele, “Reproducibility Trials in a Research Brewery and Effects on the Evaluation of Hop Substances in Beer. - Part 1: Reproducibility in fresh beers. ”, BrSc, vol. 69, no. 11/12, pp. 103–111, Dec. 2016, Accessed: May 30, 2026. [Online]. Available: https://brewingscience.de/index.php/brewingscience/article/view/301