TOMBERG, Igor. CENTRAL ASIA AND THE CASPIAN: A NEW STAGE IN THE GREAT ENERGY GAME. CENTRAL ASIA AND THE CAUCASUS, Delhi, India, v. 7, n. 5, p. 20–34, 2006. Disponível em: http://13.200.237.241/CAC/index.php/cac/article/view/1003.. Acesso em: 9 jan. 2025.