Hansen, Josée (8 October 1999). "Cliff-hanger". Lëtzebuerger Land (in French). Archived from the original on 16 August 2007. Retrieved 21 September 2007.
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"The Fortress". Luxembourg City Tourism Office. Retrieved 23 July 2006.
"Organisation des communes – Textes Organiques"(PDF). Code administratif Luxembourgeois (in French). Service central de législation. 2007. Archived(PDF) from the original on 26 September 2007. Retrieved 21 September 2007.
Hansen, Josée (8 October 1999). "Cliff-hanger". Lëtzebuerger Land (in French). Archived from the original on 16 August 2007. Retrieved 21 September 2007.
"Organisation des communes – Textes Organiques"(PDF). Code administratif Luxembourgeois (in French). Service central de législation. 2007. Archived(PDF) from the original on 26 September 2007. Retrieved 21 September 2007.