款冬花化学成份的研究I.款冬酮的结构
应百平,杨培明,朱任宏
Studies on the constituents of tussilago farfara L. I. Structure of tussilagone
YING BAIPING;YANG PEIMING;ZHU RENHONG
化学学报 . 1987, (5): 450 -455 .