@misc{Rabenda_Andrzej_Relative,
 author={Rabenda, Andrzej},
 copyright={Rabenda, Andrzej},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={pol, eng},
 type={language document},
 type={serial - article},
 title={Relative risk of pneumoconiosis in welders of metallurgic plant},
}