GOŁEBIEWSKI, R. et al. 2022. Objective and Subjective Assessment of the Sound Attenuation Efficiency Obtained by Custom Moulded Earplugs with Various Acoustic Filters – a Preliminary Study. Archives of Acoustics. 47, 2 (May 2022), 201–212. DOI:https://doi.org/10.24425/aoa.2022.141650.