@ARTICLE{Popiołek_Katarzyna_From_2015,
 author={Popiołek, Katarzyna and Wojtyna, Ewa and Palt, Łukasz},
 number={No 1},
 journal={Polish Psychological Bulletin},
 howpublished={online},
 year={2015},
 publisher={Committee for Psychological Science PAS},
 title={From Polyanna syndrome to Eeyore’s Corner? Hope and pain in patients with chronic low back pain},
 URL={http://ochroma.man.poznan.pl/Content/99850/PDF/11.pdf},
 doi={10.1515/ppb-2015-0013},
}