Ren, M., X. Wang, G. Du, C. Tian, J. Zhang, X. Song, and D. Zhu. “Influence of Different Phenolic Fractions on Red Wine Astringency Based on Polyphenol/Protein Binding”. South African Journal of Enology and Viticulture, vol. 38, no. 1, Mar. 2017, pp. 118-24, doi:10.21548/38-1-1295.