1. Singleton VL (1969) Phenolic substances in grapes and wines and their significance. Adv Food Res Suppl 1. Academic Press, New York
2. Mayer AM (1978) Ann Technol Agric 27:149
3. Andrew JH (1979) Am J Enol Vitic 30(4):289
4. Berg HW, Akiyoshi M (1956) Am J Enol Vitic 7:1
5. Singleton VL, Kramling TE (1976) Am J Enol Vitic 27(4):157