https://www.socialeurope.eu/2017/07/time-eu-fair-movement-directive/
https://www.rec.uk.com/news-and-policy/press-releases/hiring-mistakes-are-costing-uk-businesses-billions-each-year-rec
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef20023en.pdf