The impact of the introduction of bilingual learning on sixth grade educational achievement levels García-Centeno, María-Carmen ; de Pablos Escobar, Laura ; Rueda-López, Nuria ; Calderón Patier, Carmen Abstract Publication: PLoS ONE Pub Date: June 2020 DOI: 10.1371/journal.pone.0234699 Bibcode: 2020PLoSO..1534699G