Li, Hua-Bin; Chen, Feng. Isolation and purification of baicalein, wogonin and oroxylin A from the medicinal plant Scutellaria baicalensis by high-speed counter-current chromatography. Journal of Chromatography A. 2005-05, 1074 (1-2): 107–110. doi:10.1016/j.chroma.2005.03.088.
Yang LX, Liu D, Feng XF, Cui SL, Yang JY, Tang XJ, He XR, Liu JF, Hu SL. [Determination of flavone for Scutellaria baicalensis from different areas by HPLC]. Zhongguo Zhong Yao Za Zhi. 2002, 27 (3): 166–70. PMID 12774393(中文).