@misc{Pawlaczyk-Łuszczyńska_Małgorzata_Sources,
 author={Pawlaczyk-Łuszczyńska, Małgorzata and Dudarewicz, Adam and Śliwińska-Kowalska, Mariola},
 copyright={Nofer Institute of Occupational Medicine},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={pol, eng},
 title={Sources of occupational exposure to ultrasonic noise},
 type={serial - article},
 type={language document},
}