"Bevölkerungsstruktur". www.statistikportal.li (in German). The fourth graph. Archived from the original on 29 January 2023. Retrieved 16 February 2024.
"Bevölkerungsstruktur". www.statistikportal.li (in German). The fourth graph. Archived from the original on 29 January 2023. Retrieved 16 February 2024.