[Demographic changes:  a major problem for the future].
Goetschin
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D003710:Demography; D019049:Developed Countries; D004467:Economics; D005544:Forecasting; D011153:Population; D011157:Population Dynamics; D012106:Research; D012959:Socioeconomic Factors; D013223:Statistics as Topic
Demographic Aging; Demographic Factors; Developed Countries; Economic Factors; Estimation Technics; Population; Population Decrease; Population Dynamics; Population Forecast; Population Projection; Research Methodology; Socioeconomic Factors