https://www.ilo.org/wcmsp5/groups/public/@dgreports/@dcomm/documents/briefingnote/wcms_743146.pdf
http://blogs.lse.ac.uk/europpblog/2018/04/06/a-global-agenda-for-labour/
https://www.eurofound.europa.eu/sites/default/files/wpef17037.pdf
http://www.etui.org/Publications2/Working-Papers/Why-central-and-eastern-Europe-needs-a-pay-rise