DURASIEWICZ, Arkadiusz. Demographic Challenges in Central and Eastern Europe in 21st Century. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 3, p. 333–343, 2015. DOI: 10.17770/sie2015vol3.370. Disponível em: https://journals.ru.lv/index.php/SIE/article/view/370.. Acesso em: 4 may. 2024.