(Thrassy) N. MARKETOS, T. (2008). EUROPEAN ENERGY SECURITY AND THE BALKANS: A BATTLEGROUND FOR THE U.S.-RUSSIA STRUGGLE FOR THE GEOSTRATEGIC CONTROL OF EURASIA.
CENTRAL ASIA AND THE CAUCASUS,
9(5), 54-65.
https://ca-c.org/index.php/cac/article/view/1210