VIELMINI, Fabrizio. “THE INFLUENCE OF MACKINDER’S THEORY ON CURRENT U.S. DEPLOYMENT IN EURASIA: PROBLEMS AND PERSPECTIVES”. CENTRAL ASIA AND THE CAUCASUS, vol. 6, no. 4, Aug. 2005, pp. 58-65, https://ca-c.org/CAC/index.php/cac/article/view/814.