X. Yao

A New Minor Saponin from the Leaves of Panax ginseng.

S. Zhang, O. Tanaka, S Zhang, 1990, Planta medica.

Ginsenoside-Ia: a novel minor saponin from the leaves of Panax ginseng.

D. Dou, Y. Wen, Y. Chen, 1996, Planta medica.

A new steroidal saponin from Dioscorea deltoidea Wall var. orbiculata

Cr Yang, B. Cai, Xi-kui Liu, 2002 .