PETROV, K. . Geo-economic Perspectives for the Lower Danube Region in the Context of European Integration. Law, Business and Sustainability Herald, [S. l.], v. 2, n. 1, p. 4–17, 2022. Disponível em: https://www.lbsherald.org/index.php/journal/article/view/29. Acesso em: 6 jun. 2026.