https://www.dgb-bestellservice.de/besys_dgb/pdf/DGB15130.pdf
https://www.alter-eu.org/press-releases/2018/02/20-0
https://tech.humanrights.gov.au/sites/default/files/2021-05/AHRC_RightsTech_2021_Final_Report.pdf
https://www.socialeurope.eu/2017/07/time-eu-fair-movement-directive/