“System prawa administracyjnego [Le système du droit administratif], vol. III, Wrocław 1978, Ossolineum” (1981) Contemporary Central & East European Law, (3-4(51-52), pp. 68–73. Available at: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1839 (Accessed: 6 October 2025).