Wooldridge, J., and M.P. Olivier. “Effects of Weathered Soil Parent Materials on Merlot Grapevines Grafted onto 110 Richter and 101-14Mgt Rootstocks”. South African Journal of Enology and Viticulture 35, no. 1 (September 21, 2016): 59–67. Accessed February 28, 2026. https://www.journals.ac.za/sajev/article/view/985.