Data Documentation 91, 54 S.
Pia S. Schober, C. Katharina Spieß, Juliane F. Stahl, Gundula Zoch, Georg F. Camehl
2017
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DOI:
https://dx.doi.org/10.18723/diw_ddc:2017-91
Frei zugängliche Version: (econstor)
http://hdl.handle.net/10419/167677
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