Čumlivski, Denko (2012). "800 let Zlaté buly sicilské"(in Czech). National Archives of the Czech Republic (Národní Archiv České Republiky). Archived from the original on 28 November 2012. Retrieved 31 October2012.
Mlsna, Petr; Šlehofer, F.; Urban, D. (2010). "The Path of Czech Constitutionality" (PDF). 1st edition (in Czech and English). Praha: Úřad Vlády České Republiky (The Office of the Government of the Czech Republic). pp. 10–11. Retrieved 31 October 2012.
web.archive.org
Čumlivski, Denko (2012). "800 let Zlaté buly sicilské"(in Czech). National Archives of the Czech Republic (Národní Archiv České Republiky). Archived from the original on 28 November 2012. Retrieved 31 October2012.