[International migration--explanations and problems].
D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005060:Europe; D011153:Population; D011157:Population Dynamics
Demographic Factors; Developed Countries; Europe; International Migration; Literature Review; Migration; Population; Population Dynamics
Internationale Wanderungsbewegungen--Erklarungsansatze und Gestaltungsfragen.