Rafał Młyński, Emil Kozłowski, CIOP-PIB, Warszawa 2016, ISBN 978-83-7373-221-6
- Introduction (5)
- Selection of hearing protectors in the 10, 12.5 and 16 kHz frequency bands, including the range up to 8 kHz (9)
- Sound attenuation in bands with audible frequencies above 8 kHz (16)
- Summary (21)
- Bibliography (23)
