https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/fs-2020-na91-niveau-territoire-juin.pdf
https://ec.europa.eu/home-affairs/system/files/2022-03/recommendation%20limit%20access%20individuals%20connected%20Russian%20Belarusian%20government%20citizenship%20residence%20EU%20through%20investor%20schemes_en.pdf
https://wiiw.ac.at/the-factors-driving-migration-intentions-and-destination-preferences-in-central-east-and-southeast-european-countries-dlp-6901.pdf