Marian Filar, Pornografia. Studium z dziedziny polityki kryminalnej [La pornographie. Étude de politique criminelle], Toruń 1977, 232 pages. Contemporary Central & East European Law, [S. l.], n. 3 (39), p. 47–49, 2019. Disponível em: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1120. Acesso em: 21 aug. 2025.