JANCZUK, M.; CZAPSKI, G. The Impact of the Coronavirus Epidemic on Air Transport in Poland. Postmodern Openings, [S. l.], v. 11, n. 2, p. 66-72, 2020. DOI: 10.18662/po/11.2/159. Disponível em: https://www.lumenpublishing.com/journals/index.php/po/article/view/2934. Acesso em: 15 sep. 2026.