Gil-Muñoz, Rocío, et al. “Effects of Cluster Thinning on Anthocyanin Extractability and Chromatic Parameters of Syrah and Tempranillo Grapes and Wines”. OENO One, vol. 43, no. 1, Mar. 2009, pp. 45-53, doi:10.20870/oeno-one.2009.43.1.786.