HAJDUK-STELMACHOWICZ, M.; CECUŁA, K.; BEŁCH, P.; SZCZYGIEŁ, E. The impact of the COVID-19 pandemic on the functioning of selected aero clubs – a preliminary study. Studies of the Industrial Geography Commission of the Polish Geographical Society, [S. l.], v. 37, n. 2, p. 64–83, 2023. DOI: 10.24917/20801653.372.5. Disponível em: https://prace-kgp.uken.krakow.pl/article/view/9766. Acesso em: 16 may. 2024.