https://www.etui.org/content/download/36365/365328/file/WP+2019+07-wages-ST-WEB.pdf
https://knowledge.wharton.upenn.edu/article/will-the-2-trillion-coronavirus-relief-package-be-enough/?utm_source=kw_newsletter&utm_medium=email&utm_campaign=2020-03-31
http://institutdelors.eu/wp-content/uploads/2018/03/Quelleambitionpourlautorit%C3%A9europ%C3%A9ennedutravail-Fernandes-mars18.pdf
http://library.fes.de/pdf-files/dialog/13464.pdf