Michalak, Monika. “Due Diligence and Good Faith in Reference to the Rulings Court of Justice of the European Union and Polish Administrative Courts”. Studia Iuridica Toruniensia 19 (March 18, 2017): 177–193. Accessed March 29, 2024. https://apcz.umk.pl/SIT/article/view/SIT.2016.021.