Downey, Mark O, Mazza, Marica, Seddon, Tara J, Rochfort, Simone and Millikan, Mary (2012) Variation in condensed tannin content, composition and polymer length distribution in the skin of 36 grape cultivars. Current Bioactive Compounds, 8 (3). pp. 200-217. ISSN 1573-4072 (print) 1875-6646 (online)

Seddon, Tara J and Downey, Mark O (2008) Comparison of analytical methods for the determination of condensed tannins in grape skin. Australian Journal of Grape and Wine Research, 14 (1). pp. 54-61. ISSN 1322-7130