MacNamara, K., C.J. van Wyk, O.P.H. Augustyn, and A. Rapp. “Flavour Components of Whiskey. I. Distribution and Recovery of Compounds by Fractional Vacuum Distillation”. South African Journal of Enology and Viticulture 22, no. 2 (May 4, 2017): 69–74. Accessed March 10, 2026. https://www.journals.ac.za/index.php/sajev/article/view/2194.