“The Treaty of Good Neighbourship and Friendly Cooperation of 17 June 1991 between the Republic of Poland and the Federal Republic of Germany: Origin, Aims and Implementation. Successes, Failures and Prospects in the Context of the Migration Crisis in Euro” (2018) Economic and Political Thought, 62(3). Available at: https://mysl.lazarski.pl/mysl/article/view/1611 (Accessed: 16 March 2026).