https://www.europarl.europa.eu/doceo/document/A-9-2023-0189_EN.html
https://www.oecd-ilibrary.org/docserver/cb6d9eca-en.pdf?expires=1654579866&id=id&accname=guest&checksum=058AA472061C4F1B77F0DDF5D1BCBA31
http://library.fes.de/pdf-files/dialog/13464.pdf
http://cdn.obr.uk/FSR-July-2018-1.pdf