TY - GEN A1 - Konarzewski, Krzysztof PB - Educational Research Institute L1 - http://www.jbc.bj.uj.edu.pl/Content/409080/PDF/4-2-konarzewski-czy-wielodzietnosc-obniza-osiagniecia-szkolne.pdf L2 - http://www.jbc.bj.uj.edu.pl/Content/409080 KW - education KW - academic achievement KW - sibship size KW - birth order KW - PISA T1 - Is a large family detrimental to academic performance? UR - http://www.jbc.bj.uj.edu.pl/dlibra/publication/edition/409080 ER -