Szumiło M. The april constitution and the continuity of the Polish state in exile. In: A thousand years of Poland’s presence among the elite of European states [Internet]. Warszawa: Ordo Iuris Institute for Legal Culture - Scientific Press; 2026 [cited 2026 May 9]. (Ordo Iuris Library). Available from: https://wydawnictwo.ordoiuris.pl/index.php/books/catalog/book/82/chapter/255