ZAZHIGAEV, Boris. “ONE OF THE LIMITROPHE TERRITORIES OF THE GLOBAL WORLD (TRANSFORMATION OF THE STATES OF THE BALTIC-BLACK SEA REGION IN THE 21ST CENTURY) ”. CENTRAL ASIA AND THE CAUCASUS, vol. 10, no. 4-5, Oct. 2009, pp. 106-17, https://ca-c.org/CAC/index.php/cac/article/view/1236.