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Kindergarten entrance age and children's achievement 

, In: Journal of human resources / publ. under the ausp. of the International Relations Research Institute and the Institute for Research on Poverty
impacts of state policies, family background, and peers 
Elder, Todd E.. (2009)  3 - p. 641-683
Exemplar:  Zentrale:E02 z sow 006/856; Zentrale:Magazin Zs fc 4856