Coefficients obtained for the inflow of migration to the cities and the countryside in the US.
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https://figshare.com/articles/dataset/Coefficients_obtained_for_the_inflow_of_migration_to_the_cities_and_the_countryside_in_the_US_/6769898
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资源简介：
Coefficients obtained for the inflow of migration to the cities and the countryside in the US.
创建时间：
2018-07-06
