KOŠIR, T.; FRIC, K.; FILIPIĆ, A.; KOGOVŠEK, P. Bacterial Filtration Efficiency of Different Masks. Strojniški vestnik - Journal of Mechanical Engineering, [S. l.], v. 68, n. 4, p. 225–232, 2022. DOI: 10.5545/sv-jme.2022.34. Disponível em: https://ojs30.sv-jme.eu/index.php/sv-jme/article/view/34. Acesso em: 5 may. 2024.