@misc{Kowalska_Małgorzata_Frequency,
 author={Kowalska, Małgorzata and Bugajska, Joanna and Żołnierczyk-Zreda, Dorota},
 copyright={Kowalska, Małgorzata},
 copyright={Bugajska, Joanna},
 copyright={Żołnierczyk-Zreda, Dorota},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={pol, eng},
 type={serial - article},
 type={language document},
 title={Frequency of burnout syndrome in office workers},
}