Triterpenoids from the Roots of Rubus obcordatus (Rosaceae)
ZUO Guo-Ying , LIU Shu-Ling , XU Gui-Li , WANG Gen-Chun ,
ZHANG Yun-Ling , ZHENG Dan
Plant Diversity . 2008, (03): 381 -382 .  DOI: 10.3724 SP.J.1143.2008.07263