@misc{Szubert_Zuzanna_Sickness,
 author={Szubert, Zuzanna and Sobala, Wojciech},
 copyright={Nofer Institute of Occupational Medicine},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={pol, eng},
 type={language document},
 type={serial - article},
 title={Sickness absence in persons who leave their jobs due to various reasons},
}