Nesvadba, Vladimír, Jana Olšovská, Lenka Straková, Jitka Charvátová, and Sabina Trnková. “Essential Oils in Czech Hop Varieties”. KVASNY PRUMYSL 67, no. 3 (June 15, 2021): 447-454. Accessed September 27, 2022. https://kvasnyprumysl.eu/index.php/kp/article/view/246.