Federal Chancellor Corina Casanova (编), The Swiss Confederation – A Brief Guide 2015, Berne, Switzerland: Swiss Federal Chancellery (FCh) of the Swiss Confederation, 28 April 2015 [2016-01-04], (原始内容(PDF)存档于2016-01-21)
註解與參考資料
^The National Council (official site). Berne, Switzerland: The Swiss Parliament. [2016-08-09]. (原始内容存档于2017-10-10).