Kriel, G. J. le R., C. J. Orffer, and E. F. Beukman. “Symptomatology and Anatomy of Stemgrooving (Legno Riccio) 1n the Grape Vine”. South African Journal of Enology and Viticulture 1, no. 2 (May 15, 2017): 85–101. Accessed February 28, 2026. https://www.journals.ac.za/sajev/article/view/2417.