title: [Attempts to define and classify unmarried cohabitations and unions].
mesh_terms: D002965:Classification; D003710:Demography; D019049:Developed Countries; D004467:Economics; D005060:Europe; D008393:Marriage; D011153:Population; D011157:Population Dynamics; D012106:Research; D012923:Social Class; D012959:Socioeconomic Factors; D009626:Terminology as Topic; D013997:Time Factors
keywords: Classification; Consensual Union; Demographic Factors; Developed Countries; Economic Factors; Europe; Literature Review; Nuptiality; Population; Population Dynamics; Research Methodology; Socioeconomic Factors; Socioeconomic Status; Terminology; Time Factors
vernacular_title: Opiti za definirane i klasifitsirane na bezbrachnite sazhitelstva i sayuzi.