BIDUCHAK, A. DEMOGRAPHIC CRISIS IN UKRAINE (PROBLEMS AND CHALLENGES). Sworld-Us Conference proceedings, [S. l.], v. 1, n. usc34-00, p. 60–67, 2025. DOI: 10.30888/2709-2267.2025-34-00-010. Disponível em: https://proconference.org/index.php/usc/article/view/usc34-00-010. Acesso em: 3 apr. 2026.