HAJIYEV, Nazim; MANSURA, Manafova; SVERDLIKOVA, Elena; SAFRONOV, Roman; VITYUTINA, Tatyana. Oligopoly Trends in Energy Markets: Causes, Crisis of Competition, and Sectoral Development Strategies. International Journal of Energy Economics and Policy, [S. l.], v. 11, n. 6, p. 392–400, 2021. Disponível em: https://mail.econjournals.com/index.php/ijeep/article/view/11634. Acesso em: 19 sep. 2024.