DYBAŁ, M. Private Pension – Benefit Expenditures. Economic and Environmental Studies, [S. l.], v. 17, n. 1 (41), p. 127–137, 2020. Disponível em: https://czasopisma.uni.opole.pl/index.php/ees/article/view/2723. Acesso em: 10 apr. 2025.