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Freiburg i.Br. [u.a.]: Ploetz, 1978
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Frankfurt/Main [u.a.]: Campus-Verlag, 1982
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Frankfurt am Main; Berlin; Bern; Wien [u.a.]: Lang, 1997
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Saarbrücken [u.a.]: Breitenbach, 1991
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Stuttgart: Dt. Verl.-Anst., 1987
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Bonn: Dietz, 1994
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Bonn: Institute of Labor Economics (IZA), 2020
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Bielefeld: transcript Verlag, 2016
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Bonn: Institute for the Study of Labor (IZA), 2016
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October 2019
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Bielefeld: transcript, [2016]
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2024
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World Bank, Washington, DC, 2014
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The Royal African Society, 1976
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African Studies Association, 1979
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Bonn, Germany: IZA - Institute of Labor Economics, January 2020
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[S.l.]: SSRN, [2020]
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[S.l.]: SSRN, [2016]
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Informa UK Limited, 1992
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Wiley, 2022