title: [Differentiation of the age structure of the world population in light of the methods of its classification].
authors.forename: Z
authors.initials: Z
authors.lastname: Dlugosz
mesh_terms: D017677:Age Distribution; D000367:Age Factors; D002965:Classification; D003710:Demography; D011153:Population; D011154:Population Characteristics; D012106:Research; D013223:Statistics as Topic
keywords: Age Distribution; Age Factors; Classification; Demographic Factors; Estimation Technics; Population; Population Characteristics; Research Methodology; World