title: [Some considerations regarding the subject of demography].
authors.forename: T
authors.initials: T
authors.lastname: Tsankov
mesh_terms: D002031:Bulgaria; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D011157:Population Dynamics; D012942:Social Sciences
keywords: Bulgaria; Demography; Developed Countries; Eastern Europe; Europe; Population Theory; Social Sciences