BONDARCHUK, Yulyia. European energy security: current issues and chalenges. Mediaforum : Analytics, Forecasts, Information Management, [S. l.], v. 6, p. 256–265, 2018. DOI: 10.31861/mediaforum.2018.6.256-265. Disponível em: https://journals.chnu.edu.ua/mediaforum/article/view/175. Acesso em: 13 aug. 2026.