Corbetta, M. K., Kasdorf, G. G. F., Engelbrecht, D. J. and Wiid, J. (2017) “Detection of Viral-like Particles by Electron Microscopy of Negatively Stained Extracts from Grapevines”, South African Journal of Enology and Viticulture, 5(2), pp. 43–49. doi: 10.21548/5-2-2358.