https://www.nao.org.uk/wp-content/uploads/2017/07/The-Customs-Declaration-Service.pdf
https://ec.europa.eu/info/sites/info/files/opinion-comite-adhoc-2016-10-26_en.pdf
https://ec.europa.eu/taxation_customs/business/company-tax/common-consolidated-corporate-tax-base-ccctb_en
https://www.socialeurope.eu/juncker-talks-talk-will-walk-walk
http://www.britishchambers.org.uk/press-office/press-releases/bcc-firms-invest-in-local-labour-but-still-need-foreign-skills-to-plug-shortages.html
http://www.cobcoe.eu/files/cobcoe-brexit-report-september-2017-e-Y4G2st.pdf
http://www.britishchambers.org.uk/Workforce%20Survey%202017%20-%20Skills%20shortages.pdf
Introduction Context Role of Germany The Taxes Considered Grand Themes of the European Dialogue ...
http://www.ips-journal.eu/topics/european-union/article/show/the-real-state-of-the-european-economy-2287/