https://ec.europa.eu/commission/sites/beta-political/files/revised_withdrawal_agreement_including_protocol_on_ireland_and_nothern_ireland.pdf
https://www.ips-journal.eu/topics/foreign-and-security-policy/political-chess-with-human-pawns-7547/
https://www.crisisgroup.org/europe-central-asia/balkans/kosovo/269-northern-kosovo-asserting-sovereignty-amid-divided-loyalties