SITKIEWICZ, Piotr. Bruno, syn Franciszka. Schulz/Forum, [S. l.], n. 15, p. 5–25, 2020. DOI: 10.26881/sf.2020.15.01. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/schulz/article/view/4892. Acesso em: 23 kwi. 2024.