Statistical Office of Polish government: report of Polish census of 2002 (英文) "Borders of Language and Identity in Teschen Silesia" - Kevin Hannan(英语:Kevin
1918-1922. (Universityof Nebraska Press, 1997). Wilson, T. K. Frontiers of Violence: Conflict and Identity in Ulster and Upper Silesia 1918-1922 (Oxford
Final of Gliwice-Silesia 2019. European Broadcasting Union. [2 June 2021]. (原始内容存档于2 June 2021). Results of the Final of Gliwice-Silesia 2019. European