Yakimova Вилена Анатольевна, and Pankova Светлана Валентиновна. “Assessment of the Sustainability of Border Ecosystems under Geopolitical Challenges”. Economy of Regions 20, no. 4 (December 29, 2024): 1087–1101. Accessed April 19, 2025. https://economyofregions.org/ojs/index.php/er/article/view/861.