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The effect of grade retention on high school completion:

Jacob, Brian A ; Lefgren, Lars
American economic journal. Applied economics.  1 (2009)  3 - p. 33-58 , 2009
Link: https://doi.org/10.1257/app.1.3.33
Exemplar:  Zentrale:E02 z vwl 001 jc/651; Zentrale:Magazin Zs ff 4060