Pieniak, Daniel, and Agata Walczak. “Preliminarny Studies on Scratch Resistance of the Face Shields Surface of Firefighting Helmets”. AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 20, no. 1-2 (February 28, 2019): 322–326. Accessed May 6, 2024. https://journals.economic-research.pl/atest/article/view/1529.