PREYGER, David; OMELCHENKO, Vladimir. PROBLEMS OF TURKMEN GAS EXPORT: IEW FROM UKRAINE. CENTRAL ASIA AND THE CAUCASUS, Delhi, India, v. 8, n. 1, p. 120–133, 2007. Disponível em: http://13.200.237.241/CAC/index.php/cac/article/view/1052.. Acesso em: 9 jan. 2025.