https://www.socialeurope.eu/europe-world-leader-in-eroding-workers-rights
https://www.socialeurope.eu/2017/06/world-imbalances-decline-wages/
https://www.tuc.org.uk/sites/default/files/Brexit%20Legal%20Opinion.pdf
http://www.inegalites.fr/spip.php?page=analyse&id_article=2289&id_rubrique=64&id_mot=30&id_groupe=9