BANASZYK, Piotr; DESZCZYŃSKI, Przemysław; GORYNIA, Marian; MALAGA, Krzysztof. Premises for modification of selected economic concepts induced by the COVID-19 pandemic. DEMO, Cracow, v. 5, n. 1, p. 33–60, 2021. DOI: 10.18559/RIELF.2021.1.2. Disponível em: https://ojs.fimagis.pl/index.php/demo/article/view/1321. Acesso em: 12 sep. 2025.