title: [A world of five billion:  evolution and perspectives].
mesh_terms: D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D005544:Forecasting; D011153:Population; D011157:Population Dynamics; D012106:Research; D013223:Statistics as Topic
keywords: Comparative Studies; Demographic Factors; Developed Countries; Developing Countries; Estimation Technics; Population; Population Dynamics; Population Projection; Research Methodology; World
vernacular_title: O lume de cinci miliarde:  evolutii si perspective.