https://towardsdatascience.com/a-new-coefficient-of-correlation-64ae4f260310
https://www.socialeurope.eu/2017/07/european-energy-union-muddling/
http://www.ibec.ie/Ibec/Brexit.nsf/vPages/Home~Brexit?OpenDocument
https://institute.global/insight/renewing-centre/technology-many-public-policy-platform-better-fairer-future?utm_source=Institute+Interest&utm_campaign=e60dc57491-EMAIL_CAMPAIGN_2018_02_02&utm_medium=email&utm_term=0_a778d447d9-e60dc57491-65414641