1. Editorial Committee of Flora of China, Chinese Academy of Science. In Flora of China, vol 43 (Science Press, Beijing, 1997), pp. 100–102
2. Z.S. Su, S.P. Yang, S. Zhang, L. Dong, J.M. Yue, Helv. Chim. Acta 94, 1515–1526 (2011)
3. S.B. Mahato, N.P. Sahu, G. Podder, Sci. Cult. 53, 29 (1987)
4. Vishnukanta, A.C. Rana, [Vishnukanta, 2008 #2350]
5. E.D. Morgan, Bioorg. Med. Chem. 17, 4096–4105 (2009)