STUDIES ON THE CONSTITUENTS OF PICRIA FEL-TARRAE LOUR Ⅱ. THE STRUCTURE OF PICFELTARRAEGENINS Ⅱ AND Ⅲ
GAN LI-XIAN, WU WEN-CHAO, ZHOU WEI-SHAN, CHENG GUI-REN, JIN JING-LAN
Acta Chimica Sinica . 1982, (9): 812 -820 .