http://www.etui.org/Publications2/Working-Papers/Why-central-and-eastern-Europe-needs-a-pay-rise
https://www.etui.org/content/download/36217/363575/file/F-B_07_EN_WEB.pdf
http://www.epc.eu/documents/uploads/pub_7655_riseofpostnationaldemocracy.pdf
https://www.socialeurope.eu/why-such-disparity-between-unemployment-rates-in-europe