He, Xian-Zhi; Li, Wen-Sheng; Blount, Jack W. & Dixon, R. A. Regioselective synthesis of plant (iso)flavone glycosides in Escherichia coli, article, August 2008; (https://digital.library.unt.edu/ark:/67531/metadc488164/m1/1/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .