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International populations : some welfare implications of birth, death and migration
Clarke, Harry R., (1995)
Konstante Migrationsströme im Modell der stabilen Bevölkerung
Lilienbecker, Thomas, (1991)
Zeitschrift für Bevölkerungswissenschaft : Demographie
(2009)
Age patterns of elderly migration : an international comparison
Rogers, Andrei, (1988)
Requiem for the net migrant
Rogers, Andrei, (1990)
The human settlements and services area: the first five years
Rogers, Andrei, (1979)