@misc{Waszkowska_Małgorzata_Recommended,
 author={Waszkowska, Małgorzata},
 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={Recommended frequency of preventive psychological tests in selected groups of operators},
}