Van Rooyen, P.C., L.P. Ellis, and C.S. Du Plessis. 2017. “Interactions Between Grape Maturity Indices and Quality for Pinotage and Cabernet Sauvignon Wines from Four Localities”. South African Journal of Enology and Viticulture 5 (1):29-34. https://doi.org/10.21548/5-1-2366.