De Clippeleer, Jessika, et al. “Inclusion Complexes of Trans-Iso-α-Acids With β-Cyclodextrin: Preparation of Highly Enriched Cis- and Trans-Iso-α-Acids”. BrewingScience, vol. 69, no. 11/12, Dec. 2016, pp. 128-41, https://brewingscience.de/index.php/brewingscience/article/view/304.