RobinJean-Pierre, SauvageFrançois-Xavier, Martine Pradal, and Marc Chovelon. “Soil Reflectance and Colouring of Grape. Vine Red Light Excitation Could Be Decisive for Grape Berry Quality”. OENO One 34, no. 3 (September 30, 2000): 101-119. Accessed July 6, 2020. https://oeno-one.eu/article/view/1003.