Hunter, J. “Plant Spacing Implications for Grafted Grapevine II Soil Water, Plant Water Relations, Canopy Physiology, Vegetative and Reproductive Characteristics, Grape Composition, Wine Quality and Labour Requirements”. South African Journal of Enology and Viticulture, vol. 19, no. 2, May 2017, pp. 35-51, doi:10.21548/19-2-2243.