Hunter, J., C. Volschenk, J. Marais, and G. Fouche. “Composition of Sauvignon Blanc Grapes As Affected by Pre-Veraison Canopy Manipulation and Ripeness Level”. South African Journal of Enology and Viticulture, vol. 25, no. 1, May 2017, pp. 13-18, doi:10.21548/25-1-2132.