WILK, Anna. Legality of so-called “epidemic fees” . Scientific Journal of Bielsko-Biala School of Finance and Law, Bielsko-Biała, PL, v. 24, n. 2, p. 47–50, 2020. DOI: 10.19192/wsfip.sj2.2020.3. Disponível em: https://asej.eu/index.php/asej/article/view/560. Acesso em: 11 may. 2025.