[Analysis of some emigrational cycles of Portuguese population emigration].
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D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005060:Europe; D005602:France; D011153:Population; D011157:Population Dynamics; D011174:Portugal
Demographic Factors; Developed Countries; Europe; France; International Migration; Mediterranean Countries; Migration; Population; Population Dynamics; Portugal; Southern Europe; Western Europe