Borucka A, Parczewski R, Kozłowski E, Świderski A. Evaluation of air traffic in the context of the Covid-19 pandemic. AoT [Internet]. 2022 Dec. 31 [cited 2024 Jul. 22];64(4):45-57. Available from: https://archivesoftransport.com/index.php/aot/article/view/302