参考文献

Hellwig, Veronika; Mayer-Bartschmid, Anke; Mueller, Hartwig; Greif, Gisela; Kleymann, Gerald; Zitzmann, Werner; Tichy, Hans-Volker; Stadler, Marc Journal of Natural Products, 2003 , vol. 66, # 6 p. 829 - 837