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New Possibilities for Socio-Economic Research Through Longitudinal Data from the Research Data Centre of the German Federal Pension Insurance (FDZ-RV)

Ralf K. HimmelreicherMichael Stegmann

出版	2008
URL	http://books.google.com.hk/books?id=Ctg6zQEACAAJ&hl=&source=gbs_api