Kotarbińska E, Kozłowski E, Młyński R. Objective tests and the assessment of the acoustic properties of ear-plugs. Arch. Acoust. [Internet]. 2006 Jan. 31 [cited 2026 Mar. 4];31(4(S):275-80. Available from: https://acoustics.ippt.gov.pl/index.php/aa/article/view/1356