@misc{Maciejewska_Aleksandra_Analysis, author={Maciejewska, Aleksandra}, copyright={Nofer Institute of Occupational Medicine}, howpublished={online}, publisher={Nofer Institute of Occupational Medicine}, publisher={Polish Association of Occupational Medicine}, language={pol, eng}, title={Analysis of the competences of workplace inspecting laboratories for the determination of free crystaline silica (FCS), based on proficiency testing results}, type={language document}, type={serial - article}, }