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中国华北和东北地区杓兰属植物的数量分类研究
张 毓, 王苗苗, 张 雪, 赵世伟
The Study on Numerical Taxonomy of Cypripedium in North and Northeast China
ZHANG Yu, WANG Miao-Miao, ZHANG Xue, ZHAO Shi-Wei
园艺学报 . 2013, (5): 933 .