Romain Kohn. Ana Karlsreiter , 编. Luxembourg. Organization for Security and Co-operation in Europe (Vienna). 2003 [22 January 2015]. (原始内容存档于2015-09-24).
public.lu
luxembourg.public.lu
Media(PDF). Grand Duchy of Luxembourg. [14 November 2014]. (原始内容(PDF)存档于29 November 2014).
web.archive.org
Media(PDF). Grand Duchy of Luxembourg. [14 November 2014]. (原始内容(PDF)存档于29 November 2014).
Romain Kohn. Ana Karlsreiter , 编. Luxembourg. Organization for Security and Co-operation in Europe (Vienna). 2003 [22 January 2015]. (原始内容存档于2015-09-24).