id	keyword
cpos-324	migration
cpos-324	population
cpos-324	internal
cpos-324	countries
cpos-324	europe
cpos-324	redistribution
cpos-324	impact
cpos-324	et al
cpos-324	density
cpos-324	bell
cpos-324	population redistribution
cpos-324	rees
cpos-324	areas
cpos-324	regions
cpos-324	rowe
cpos-324	intensity
cpos-324	gains
cpos-324	data
cpos-324	losses
cpos-324	patterns
cpos-324	urban
cpos-324	doi