Fortin, M., and R. Hetu. “The Influence of Head Protectors on Warning Sound Localization Ability in the Horizontal Plane”. Canadian Acoustics 23, no. 3 (September 1, 1995): 13–14. Accessed April 26, 2024. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/920.