JONAS, Krzysztof; BARTŁOMIEJ, Pilch. Impact of the COVID-19 pandemic on the operations of Polish insurance companies in section II. Scientific Journal of Bielsko-Biala School of Finance and Law, Bielsko-Biała, PL, v. 29, n. 4, 2025. DOI: 10.19192/wsfip.sj4.2025.2. Disponível em: https://www.asej.eu/index.php/asej/article/view/908. Acesso em: 1 feb. 2026.