Ruoppo, Anna Pia, and Irene Viparelli, eds. Aperias of European Integration: Between Humanitarian Universalism and Sovereignism. Vol. 19. FedOAPress - School of Human and Social Sciences. Working Papers. SHARE Books, 2021. Accessed September 19, 2026. https://www.fedoabooks.unina.it/index.php/fedoapress/catalog/book/238.