Saayman, D., and J.J.N. Lambrechts. “The Possible Cause of Red Leaf Disease and Its Effect on Barlinka Table Grapes”. South African Journal of Enology and Viticulture 14, no. 2 (May 3, 2017): 26–32. Accessed February 28, 2026. https://www.journals.ac.za/sajev/article/view/2173.