Spatial differentiation and formation mechanism of tourism efficiency at village scale: A case study of 375 tourism villages in Luoyang
YU Ru-yi, LIANG Liu-ke, SU Xiao-yan, ZHANG Chuan-cai
JOURNAL OF NATURAL RESOURCES . 2021, (4): 893 -905 .  DOI: 10.31497/zrzyxb.20210407