The structure study of a new saikosaponin - Li-Bin Ma; Yi-Zhu Jin; Guang-Zhong Tu; He-Sheng Luo; Yu-Ying Zhao; Chang-Feng Hu; Ru-Yi Zhang; Lu-Hua Lai; Xiao-jie Xu; You-qi Tang (Acta Chimica Sinica, 1996)