Guo Z-Q, Guo Q, Zhu Z-X, Zhang S-Y, Li C, Chai X-Y, Tu P-F.  2014.  [Chemical constituents from a Tibetan medicine Meconopsis horridula]. Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal Of Chinese Materia Medica. 39(7):1152-1156.