Hoszman A, Marciszewska E, Pasztaleniec M. State aid for airlines in the EU: policy changes during the COVID-19 pandemic. JMFS [Internet]. 2023 Mar. 15 [cited 2024 Dec. 22];(46):77-88. Available from: https://econjournals.sgh.waw.pl/JMFS/article/view/3197