title: [The impact of migrations upon urban systems].
mesh_terms: D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005060:Europe; D005061:Europe, Eastern; D005843:Geography; D011044:Poland; D011153:Population; D011157:Population Dynamics; D014505:Urban Population
keywords: Demographic Factors; Developed Countries; Eastern Europe; Europe; Geographic Factors; Migration; Poland; Population; Population Dynamics; Rural-urban Migration; Spatial Distribution; Urban Spatial Distribution
vernacular_title: Wplyw migracji na systemy miejskie.