https://www.socialeurope.eu/how-to-reform-the-european-fiscal-rules
https://dwfgroup.com/en/news-and-insights/insights/2022/10/new-subsidy-control-regime-to-come-into-effect-from-wednesday-4-january-2023
http://www.europarl.europa.eu/ftu/pdf/en/FTU_5.9.1.pdf
https://www.eca.europa.eu/Lists/ECADocuments/Briefing_paper_MFF/Briefing_paper_MFF_EN.pdf