Problemy ubezpieczeń społecznych w prawie polskim: [Problems of social insurance in Polish law]. Studia Prawnicze / The Legal Studies, [S. l.], n. 1 (39), p. 29–86, 2023. DOI: 10.37232/sp.1974.1.2. Disponível em: https://czasopisma.inp.pan.pl/index.php/sp/article/view/3094. Acesso em: 5 oct. 2025.