1. Agrawal, P. K.,Carbon-13 NMR of Flavonoids, Elsevier Sciences Publishing Company INC, New York, p. 5 (1989).
2. Agarwal, V. K., Thappa, R. K., Agarwal, S. G., and Dhar, K. L., Phenolic constituents ofIris milesii rhizomes.Phytochemistry, 23, 1342–1343 (1984).
3. Breitmaier, Em. and Voelter, W.,Carbon-13 NMR Spectroscopy 3rd ed. VCH Publishers, New York (1987).
4. Dewick, P. M., The Shikimate Pathway, In:Medicinal natural products: a biosynthetic approach, 2nd ed., John Wiley & Sons Ltd, New York, p. 155 (2002).
5. Elangovan, V., Sekar, N., and Govindasamy, S., Chemopreventive potential of dietary bioflavonoids against 20-methylcholanthrene-induced tumorigenesis.Cancer Lett., 87, 107–113 (1994).