Moskal A, Sobarnia A, Pazera S, Kopania Z, redaktorzy. The European Union in light of the COVID-19 Pandemic ‒ A Failure of European Integration or a Chance for Closer Cooperation among Member States? [Internet]. Poland: Wydawnictwo Księgarnia Akademicka; 2021 [cytowane 31 grudzień 2025]. Dostępne na: https://books.akademicka.pl/publishing/catalog/book/273