title: [Main causes and problems of migration in contemporary world].
authors.forename: H
authors.initials: H
authors.lastname: Kocianova
mesh_terms: D003710:Demography; D004467:Economics; D004641:Emigration and Immigration; D011153:Population; D011157:Population Dynamics
keywords: Demographic Factors; Economic Factors; International Migration; Migration; Population; Population Dynamics; World