DIMITROVA, Sevdalina; KIKSTE, Kaspars. PREREQUISITES FOR THE ESTABLISHMENT OF THE BALTIC-BLACK SEA UNION. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 111–115, 2024. DOI: 10.17770/etr2024vol1.7962. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/7962.. Acesso em: 6 oct. 2024.