
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.socialeurope.eu/social-dialogue-in-central-and-eastern-europe

https://www.secours-catholique.org/sites/scinternet/files/publications/rapport_revenusans_contreparties.pdf