@ARTICLE{Mruk_Christopher_J._Defining_2013,
 author={Mruk, Christopher J.},
 number={No 2},
 journal={Polish Psychological Bulletin},
 howpublished={online},
 year={2013},
 publisher={Committee for Psychological Science PAS},
 title={Defining Self-Esteem as a Relationship between Competence and Worthiness: How a Two-Factor Approach Integrates the Cognitive and Affective Dimensions of Self-Esteem},
 URL={http://journals.pan.pl/Content/99743/PDF/05.pdf},
 doi={10.2478/ppb-2013-0018},
}