Buffin, Brian, and Philipp Campbell. “The Influence of Hop Acid Components on the Phenomenon of Gushing in Various Standard and Non-Alcoholic Beers - Evaluation of Advanced Hop Products under Induced Gushing Conditions. - Hop Special”. BrewingScience 66, no. 11/12 (December 20, 2013): 198–204. Accessed May 30, 2026. https://brewingscience.de/index.php/brewingscience/article/view/391.