@ARTICLE{Gruszecka_Eufrozyna_Appreciating_2015,
 author={Gruszecka, Eufrozyna},
 number={No 2},
 journal={Polish Psychological Bulletin},
 howpublished={online},
 year={2015},
 publisher={Committee for Psychological Science PAS},
 title={Appreciating Gratitude: Is Gratitude an Amplifier of Well-Being?},
 URL={http://www.czasopisma.pan.pl/Content/99863/PDF/04.pdf},
 doi={10.1515/ppb-2015-0025},
}