Bernaciak, Nikodem, and Piotr Zduńczyk. Reasons for Opposing the Concept of Foreigners Integration Centers: Responsible Migration Policy Requires Selection, Deportation, and Assimilation. Reports. Warszawa: Ordo Iuris Institute for Legal Culture - Scientific Press, 2025. Accessed April 24, 2026. https://wydawnictwo.ordoiuris.pl/index.php/books/catalog/book/63.