| Cu, J.Q. 1988. Yunnan-the kingdom of essential oil plants. In: Flavors and Fragrances: A World Perspective, eds. Lawrence, B.M., Mookherjee, B.D., and Willis, B.J. Elsevier, Amsterdam, Netherland. 231-241. |
| |
| Cu, J.Q., Perineau, F., and Goepfert, G. 1990. GC/MS analysis of star anise oil. J. Essent. Oil Res. 2(2):91-92. |
| |
| De Maack, F., Frunet, D., Malnati, J.C., and Estienne, J. 1982. Study of minor constituents in anethole samples obtained from anise oil. 1. Study of the origin of an anethole by the identification of sesquiterpenes. Ann. Fals. Exp. Chim. 75:357-367. |
| |
| Kubeczka, K.-H., and Formácek, V. 1982. Essential oils analysis by capillary gas chromatography and carbon-13 NMR spectroscopy. :219-226. John Wiley & Sons, Chichester, UK. |
| |
| Sun, L. 1990. Studies on the chemical constituents of the volatile oil of Illicium verum Hook. f. grown in Shangyou. Youji Huaxue. 10(2):183-186. |
| |
| Zhu, L., Li, Y., Li, B., Lu, B., and Xia, N. 1993. Aromatic plants and essential constituents. South China Institute of Botany, Chinese Academy of Sciences. Peace Book Co. Ltd., Hong Kong. 20. |
| |
