TY - Biodiv Sci A1 - Juanjuan Zhao, Zhiyun Ouyang, Hua Zheng, Weihua Xu, Xiaoke Wang, Yongming Ni T1 - Species composition of alien plants in the built-up area of Beijing Y1 - 2010-01-20 JF - Biodiversity Science JO - Biodiv Sci SP - 19 EP - 28 VL - 18 IS - 1 UR - https://www.biodiversity-science.net N1 - 10.3724/SP.J.1003.2010.019 ER -