Klafkowski, Alfons. 2021. “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):33-65. https://doi.org/10.14746/ppuam.2021.12.02.