Data Documentation 19, 18 S.
Joachim R. Frick, Jan Goebel, Markus M. Grabka, Olaf Groh-Samberg, Gert G. Wagner
2007
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DOI:
https://dx.doi.org/10.18723/diw_ddc:2007-19
Frei zugängliche Version: (econstor)
http://hdl.handle.net/10419/129228
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