Potapova , O. B. and Samoilenko , N. S. (2020) “Experience of the countries of Southeast Europe in cross-border cooperation (end of XX – beginning of XXI century). ”, Zaporizhzhia Historical Review, 2(45), pp. 224-228. Available at: https://istznu.org/index.php/journal/article/view/856 (Accessed: 20May2022).