M. Schneeberger, W. Back, and M. Krottenthaler, “Aspects of internal recycling of recoverable yeast beer”, BrSc, vol. 59, no. 9/10, pp. 148–162, Oct. 2006, Accessed: May 30, 2026. [Online]. Available: https://brewingscience.de/index.php/brewingscience/article/view/506