https://commission.europa.eu/system/files/2023-06/COM_2023_311_1_EN_annexe_autre_acte_part1_v7.pdf
http://library.fes.de/pdf-files/bueros/wien/19110-20220517.pdf
https://home.treasury.gov/system/files/136/Treasury_Study_WoA.pdf
https://www.ecfr.eu/article/commentary_european_solidarity_tracker_the_solidarity_that_always_was_there