Cepiński, Wojciech, Paweł Szałański, and Jacek Misiński. 2020. “Reduction of the Spread of SARS-CoV-2 Coronavirus and COVID-19 Disease through Ventilation and Air Conditioning Systems”. Instal, no. 6 (June): 28-36. https://doi.org/10.36119/15.2020.6.3.