https://ecipe.org/wp-content/uploads/2020/08/ECI_20_PolicyBrief_06_2020_LY06.pdf
https://www.piie.com/sites/default/files/documents/wp22-12.pdf
https://www.gmfus.org/news/finland-cements-its-nato-embrace
https://www.crisisgroup.org/europe-central-asia/balkans/kosovo/269-northern-kosovo-asserting-sovereignty-amid-divided-loyalties