The Description of the Polish Army and the Reichswehr’s Entry into the 1922 Plebiscite Area, published in Der Oberschlesische Wanderer. Zaranie Śląskie, [S. l.], n. 8, p. 45–57, 2022. Disponível em: https://zaranieslaskie.bs.katowice.pl/article/view/43. Acesso em: 22 nov. 2025.