Ribeiro, Thalita Passos, et al. “Grape Maturation and Quality for Juice Production in Tropical Conditions in the Initial Production Cycles”. Pesquisa Agropecuaria Brasileira, vol. 47, no. 8, Sept. 2012, pp. 1057-65, doi:10.1590/S1678-3921.pab2012.v47.12481.