https://economy-finance.ec.europa.eu/system/files/2022-07/ip180_en.pdf
https://ec.europa.eu/commission/sites/beta-political/files/revised_withdrawal_agreement_including_protocol_on_ireland_and_nothern_ireland.pdf
https://www.sachverstaendigenrat-wirtschaft.de/fileadmin/dateiablage/gutachten/jg201819/Chapter_1.pdf
https://unherd.com/2024/03/leo-varadkars-ruthless-pursuit-of-power/