https://www.socialeurope.eu/poland-crossroads-authoritarianism-democracy
https://ec.europa.eu/commission/sites/beta-political/files/joint_report.pdf
https://www.ippr.org/files/2017-09/cej-interim-report-summary-170911.pdf
http://www.euronews.com/2017/12/07/which-european-countries-have-the-most-expensive-electricity?utm_source=newsletter&utm_medium=en&utm_content=which-european-countries-have-the-most-expensive-electricity&_ope=eyJndWlkIjoiZjU3Y2JhYmUwMGUxZDFiNTUxOTU1ZDljNzExNTI1MmEifQ==
http://www.oecd.org/std/Hows-Life-2017-60-second-guide.pdf
http://www.euronews.com/2017/12/08/view-visegrad-nations-protect-the-eu-it-s-time-to-say-thanks-
https://www.rand.org/pubs/research_reports/RR2200.html
https://ec.europa.eu/research/evaluations/pdf/archive/other_reports_studies_and_documents/hlg_2017_report.pdf
http://ec.europa.eu/eurostat/web/products-eurostat-news/-/EDN-20171207-1?inheritRedirect=true&redirect=%2Feurostat%2F
https://reader.chathamhouse.org/europes-political-tribes#