TEMPORAL-SPATIAL VARIANCE AND FACTORS OF ECOLOGICAL EFFICIENCY IN YANGTZE RIVER DELTA UNDER GREEN INNOVATION
TIAN Ze, XIAO Qianqian, CHEN Kejing, LIANG Wei
Resources & Industries . 2022, (2): 42 -53 .  DOI: 10.13776/j.cnki.resourcesindustries.20211227.003

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