Eugeniusz Smoktunowicz, Analogia w prawie administracyjnym [L’analogie en droit administratif], Warszawa 1970, PWN. Contemporary Central & East European Law, [S. l.], n. 19, p. 53–57, 1973. Disponível em: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1538. Acesso em: 6 oct. 2025.