PIETRYGA, P. Reverend Father Professor Antoni Siemianowski (28.5.1930 –4.12.2022) in Memoriam. Roczniki Filozoficzne, [S. l.], v. 71, n. 3, p. 319–333, 2023. DOI: 10.18290/rf23713.16. Disponível em: https://czasopisma.tnkul.pl/index.php/rf/article/view/323. Acesso em: 7 nov. 2025.