@ARTICLE{Wytykowska_Agata_The_2015,
 author={Wytykowska, Agata and Gabińska, Anna},
 number={No 3},
 journal={Polish Psychological Bulletin},
 howpublished={online},
 year={2015},
 publisher={Committee for Psychological Science PAS},
 title={The effect of emotions, promotion vs. prevention focus, and feedback on cognitive engagement},
 URL={http://www.czasopisma.pan.pl/Content/99880/PDF/04.pdf},
 doi={10.1515/ppb-2015-0042},
}