6CHUN LIN YE, YAN HUA LU, DONG ZHI WEI. Fla- vonoids from Cleistocalyx operculatus [J]. Phytochemistry, 2004,65 (4) : 445.
7NGUYEN THI DUNG, JUNG MIN KIM, SUN CHUL KANG. Chemical composition, antimicrobial and antioxidant activities of the essential oil and the ethanol extract of Cleis- tocalyx operculatus (Roxb.) [J]. Merr and Perry buds,2008, 46(12) :3632-3639.
8CHUN LIN YE,JIAN WEN LIU,DONG ZHI WEI,et al. In vitro anti-tumor activity of 2,4 dihydroxy-6-methoxy-3,5- dimethylchalcone against six established human cancer cell lines[J]. Pharmacological Research, 2004,50 ( 13 ) : 505-510.