SPYRA, Janusz. Paradisal are Cieszyn areas or how doctor František Sláma tried Cieszyn gypsies. Studia Etnologiczne i Antropologiczne, [S. l.], v. 11, p. 244–256, 2011. Disponível em: https://journals.us.edu.pl/index.php/SEIA/article/view/9040. Acesso em: 5 dec. 2025.