KLAUZIŃSKA, Kamila; POLKOWSKI, Tomasz Krzysztof. Unresolved mystery of Jsydor Szykier of Szadek and what we can learn from it. Biuletyn Szadkowski, [S. l.], v. 13, p. 101–115, 2013. DOI: 10.18778/1643-0700.13.06. Disponível em: https://czasopisma.uni.lodz.pl/biuletynszadkowski/article/view/13857. Acesso em: 25 aug. 2024.