SITKIEWICZ, Piotr. Bruno, Son of Franz. Schulz/Forum, [S. l.], p. 122–141, 2023. DOI: 10.26881/sf.2023.s.07. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/schulz/article/view/10983. Acesso em: 9 cze. 2025.