Wietstock, Philip C., Thomas Kunz, and Frank Jürgen Methner. “Influence of Hopping Technology on Oxidative Stability and Staling-Related Carbonyls in Pale Lager Beer”. BrewingScience 69, no. 11/12 (December 20, 2016): 73–84. Accessed July 21, 2026. https://brewingscience.de/index.php/brewingscience/article/view/297.