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Education and gender bias in the sex ratio at birth: Eviden..:

Echávarri, Rebeca A ; Ezcurra, Roberto
Demography / Population Association of America.  47 (2010)  1 - p. 249-268 , 2010
Link: https://doi.org/10.1353/dem.0.0089
Exemplar:  Zentrale:Magazin Zs fc 9760