Skuteczność prawa i problemy jej badania: [Efficacy of law and problems connected with studying it]. Studia Prawnicze / The Legal Studies, [S. l.], n. 1-2 (63-64), p. 3–26, 2023. DOI: 10.37232/sp.1980.1-2.1. Disponível em: https://czasopisma.inp.pan.pl/index.php/sp/article/view/3845. Acesso em: 5 oct. 2025.