TY - Bulletin of Botanical Research A1 - LU Wei-Wei;LÜDe-Guo;LI Zhi-Xia;ZHOU Chuan-Sheng; T1 - The Changes of Five Flavonoids Contents in Crataegus chlorosarca Leaves Y1 - 2009-03-20 JF - Bulletin of Botanical Research JO - Bulletin of Botanical Research SP - 248 EP - 252 VL - 29 IS - 2 UR - https://bbr.nefu.edu.cn N1 - 10.7525/j.issn.1673-5102.2009.02.022 ER -