Van Der Westhuizen, Louisa M., and M.A. Loos. 2017. “Effect of PH, Temperature and S02 Concentration on the Malo-Lactic Fermentation Abilities of Selected Bacteria and on Wine Colour”. South African Journal of Enology and Viticulture 2 (2):61-65. https://doi.org/10.21548/2-2-2397.