TURNOWIECKI, Witold. Problem of the elderly people. The situation in the European Union. Cywilizacja i Polityka, [S. l.], n. 5, p. 124–129, 2007. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/cywilizacja/article/view/9718. Acesso em: 20 may. 2024.