https://www.supremecourt.gov/DocketPDF/21/21-1326/225832/20220519154806836_21-1326%20Amicus%20Brief.pdf
https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/fs-na80-2019-autonomie-collectivites-final.pdf
http://www.cesifo-group.de/ifoHome/publications/working-papers/CESifoWP/CESifoWPdetails?wp_num=6433&CESifoWP.search=+