https://www.socialeurope.eu/beyond-fantasies-industry-4-0-global-capital-no-answers
http://www.ips-journal.eu/topics/european-union/article/show/the-real-state-of-the-european-economy-2287/
http://www.cesifo-group.de/portal/page/portal/DocBase_Service/studien/Studie-2017-Felbermayr-etal-Brexit-79843.pdf