(in French)/"Mémorial A, 1920, No. 23"(PDF) (in German). Service central de législation. Archived from the original(PDF) on 10 April 2008. Retrieved 21 December 2006.
(in French and German)"Mémorial A, 1920, No. 46"(PDF). Service central de législation. Archived from the original(PDF) on 10 April 2008. Retrieved 21 December 2006.
public.lu
legilux.public.lu
(in French)/"Mémorial A, 1920, No. 23"(PDF) (in German). Service central de législation. Archived from the original(PDF) on 10 April 2008. Retrieved 21 December 2006.
(in French and German)"Mémorial A, 1920, No. 46"(PDF). Service central de législation. Archived from the original(PDF) on 10 April 2008. Retrieved 21 December 2006.