EN中文
The Evolution Characteristics and Threshold Effects of the Ecological Efficiency in the Yellow River Basin Cities
Xu Weixiang, Zheng Jinhui, Wang Rui, Zhou Jianping, Hu Bao, Liu Chengjun
SCIENTIA GEOGRAPHICA SINICA . 2022, (1): 74 -82 .  DOI: 10.13249/j.cnki.sgs.2022.01.007