@ARTICLE{Wójcik_Małgorzata_Bullying_2015,
 author={Wójcik, Małgorzata and Kozak, Beata},
 number={No 1},
 journal={Polish Psychological Bulletin},
 howpublished={online},
 year={2015},
 publisher={Committee for Psychological Science PAS},
 title={Bullying and exclusion from dominant peer group in Polish middle schools.},
 URL={http://www.czasopisma.pan.pl/Content/99840/PDF/01.pdf},
 doi={10.1515/ppb-2015-0001},
}