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München [u.a.]: Saur, 1978
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Göttingen: Vandenhoeck und Ruprecht, c1980
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Frankfurt am Main; Berlin; Bern; Wien [u.a.]: Lang, 2002
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Williamstown, MA: Williams College, Williams Project on the Economics of Higher Education (WPEHE), 2001
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[Cambridge, MA]: [Harvard Kennedy School, John F. Kennedy School of Government], [2023]
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2022
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Bonn, Germany: IZA - Institute of Labor Economics, September 2019