Droit constitutionnel et administratif: Dz.U. Nr 13, poz 55. Contemporary Central & East European Law, [S. l.], n. 9, p. 47–51, 1968. Disponível em: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1762. Acesso em: 3 nov. 2025.