@misc{Guzek_Wojciech_J._Occupational, author={Guzek, Wojciech J. and Sułkowski, Wiesław J.}, copyright={Guzek, Wojciech J.}, copyright={Sułkowski, Wiesław J.}, howpublished={online}, publisher={Nofer Institute of Occupational Medicine}, publisher={Polish Association of Occupational Medicine}, language={pol, eng}, type={language document}, type={serial - article}, title={Occupational hearing loss: new principles of certification}, }