@article{articlea55a8a46,
title   = {Pfaffane-type nortriterpenoids from pfaffia pulverulenta},
author = {Shiobara, Y and Inoue, S S and Nishiguchi, Y and Kato, K and Takemoto, T and Nishimoto, N and Oliveira, F. and Akisue, Gokithi and Akisue, Maria Kubota and Hashimoto, G},
year = {1992},
doi = {10.1016/0031-9422(93)85299-7},
journal   = {Phytochemistry}
}