Corbetta, M. K., G. G. F. Kasdorf, D. J. Engelbrecht, and J. Wiid. “Detection of Viral-Like Particles by Electron Microscopy of Negatively Stained Extracts from Grapevines”. South African Journal of Enology and Viticulture 5, no. 2 (May 10, 2017): 43–49. Accessed February 23, 2026. https://www.journals.ac.za/sajev/article/view/2358.