Reducing double risks in ecological degradation and poverty: a research on ecological migration in the Ningxia Hui autonomous region of China
2015 ◽
pp. 150-162
2019 ◽
Vol 60
◽
pp. 192-205
◽
2013 ◽
Vol 12
(2)
◽
pp. 1670-1678
◽
1994 ◽
Vol 36
(3-4)
◽
pp. 183-195
◽
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