https://www.ips-journal.eu/topics/democracy-and-society/eastern-europe-needs-a-new-immigration-narrative-7412/
http://www.britishchambers.org.uk/press-office/press-releases/bcc-firms-invest-in-local-labour-but-still-need-foreign-skills-to-plug-shortages.html
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1714en.pdf