Kalicka-Mikołajczyk, Adriana. “The Good Neighbourliness Principle in Relations Between the European Union and Its Eastern European Neighbours”. Przegląd Prawniczy Uniwersytetu im. Adam Mickiewicza 9 (December 15, 2019). Accessed April 24, 2024. https://pressto.amu.edu.pl/index.php/ppuam/article/view/21664.