A. Domańska and A. Michalak, Eds., The Independent: Considerations about the system and the law of the state on the 100th anniversary of the revival of a sovereign Polish state. Poland: Lodz University Press, 2018. Accessed: Jan. 21, 2026. [Online]. Available: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/266