Composition #1: Wang Xin-Zhi., Wu Fei-Hua., Qu Wei., Liang Jing-Yu. A new beta-carboline alkaloid from the seeds of Griffonia simplicifolia. chinese journal of natural medicines, 2013, vol. 11, no. 4, p. 401–405. DOI: 10.3724/SP.J.1009.2013.00401.
[
DOI link]