@ARTICLE{Kleka_Paweł_Shortening_2017,
 author={Kleka, Paweł and Paluchowski, Władysław Jacek},
 number={No 4},
 journal={Polish Psychological Bulletin},
 howpublished={online},
 year={2017},
 publisher={Committee for Psychological Science PAS},
 title={Shortening of psychological tests – assumptions, methods and doubts},
 URL={http://journals.pan.pl/Content/105286/PDF/11_other.pdf},
 doi={10.1515/ppb-2017-0058},
}