Costanza, P., B. Tisseyre, J. Hunter, and A. Deloire. “Shoot Development and Non-Destructive Determination of Grapevine (Vitis Vinifera L.) Leaf Area”. South African Journal of Enology and Viticulture, vol. 25, no. 2, May 2017, pp. 43-47, doi:10.21548/25-2-2138.