DUDAREWICZ, Adam, Esko TOPPILA, Małgorzata PAWLACZYK-ŁUSZCZYŃSKA, and Mariola ŚLIWIŃSKA-KOWALSKA. 2013. “The Influence of Selected Risk Factors on the Hearing Threshold Level of Noise Exposed Employees”. Archives of Acoustics 35 (3): 371–382. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/231.