https://www.socialeurope.eu/footballs-tilted-playing-pitch-in-europe
https://www.ips-journal.eu/index.php?id=326&L=0&tx_news_pi1%5Bnews%5D=3904&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&utm_source=newsletter&utm_medium=email&utm_campaign=en_728_20191129&cHash=5d8677e040088390be92d9eb2a20fb32
http://blogs.lse.ac.uk/brexit/2017/05/24/from-brexit-to-european-renewal-the-fracture-of-the-social-contract-underlays-the-current-turmoil/
https://papers.ssrn.com/sol3/Delivery.cfm/SSRN_ID3934683_code1082902.pdf?abstractid=3479439&mirid=1