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  • Are we spending too many years in school?
    causal evidence of the impact of shortening secondary school duration
    Büttner, Bettina ; Thomsen, Stephan L.
    Magdeburg : Univ., FEMM, 2010 ; Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2010