干旱区研究
A study of cultivated land utilization efficiency and its influencing factors in Hebei Province based on DEA-Malmquist index
ZHAO Qianshi,PAN Peipei,WANG Xiaoxu,WANG Xueran,WANG Xiaomeng,LI Ning,WANG Xinyun
Arid Zone Research . 2021, (4): 1162 -1171 .  DOI: 10.13866/j.azr.2021.04.28