VELIYEV, A. J. ., and Z. Z. . AHMADOV. “THE ROLE OF THE ENERGY POTENTIAL OF AZERBAIJAN IN THE EUROPEAN UNION ENERGY SUPPLY”. Studia Universitatis Babeș-Bolyai Europaea, vol. 62, no. 4, Dec. 2017, pp. 151-65, doi:10.24193/subbeuropaea.2017.4.11.