@misc{Szafraniec_Krystyna_Spatial,
 author={Szafraniec, Krystyna and Jędrychowski, Wiesław},
 copyright={Szafraniec, Krystyna},
 copyright={Jędrychowski, Wiesław},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={eng},
 type={serial - article},
 type={language document},
 title={Spatial variability and trends in ambient air concentrations of metals in Cracow, Poland},
}