Klafkowski, Alfons. “The Forms of Recognition of State Borders After World War II (With Particular Focus on the Arrangements Pertaining to the Polish-German Border)”. Przegląd Prawniczy Uniwersytetu im. Adam Mickiewicza 12 (June 15, 2021): 33–65. Accessed April 25, 2024. https://pressto.amu.edu.pl/index.php/ppuam/article/view/32029.