Evaluation of the Impact of Sanctions in the Energy Sector Against Russia and the Possibilities for Strengthening Their Efficiency. Научни трудове на УНСС, [S. l.], v. 5, p. 41–52, 2023. DOI: 10.37075/RP.2022.5.02. Disponível em: https://ojs.e-dnrs.org/rpunwe/article/view/272. Acesso em: 6 dec. 2025.