Loch-Ahring, Stefan, et al. “Chill-Haze – Identification and Determination of Haze-Active Constituents by HPLC and Mass Spectrometry: Part I: The Role of Polyphenols and the Astonishing Impact of Hop Components on Chill Haze Formation”. BrewingScience, vol. 61, no. 3/4, Apr. 2008, pp. 32-48, https://brewingscience.de/index.php/brewingscience/article/view/486.