https://www.politico.eu/article/jean-claude-juncker-ukraine-corruption-eu-accession/
https://www.bloomberg.com/news/articles/2017-06-14/ryanair-easyjet-say-soft-brexit-won-t-address-airline-concerns?cmpid=BBBXT061517_BIZ&utm_medium=email&utm_source=newsletter&utm_term=170615&utm_campaign=brexit
https://www.esri.ie/system/files/publications/SUSTAT106_1.pdf
http://www.institutdelors.eu/media/europeidentitemythes-bouchard-ijd-dec16.pdf?pdf=ok