https://www.eurofound.europa.eu/sites/default/files/wpef17037.pdf
https://rsf.org/en/ranking_table
https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/fs-2020-ns-cadres-02-juillet.pdf
https://www.opendemocracy.net/en/can-europe-make-it/rest-and-west-thoughts-on-brexit-and-migration-part-one/